G-API: replace GAPI_Assert() with 'false' and '0' to GAPI_Error()

* gapi: GAPI_Error() macro

* gapi: replace GAPI_Assert() with 'false' and '0' to GAPI_Error()

* build: eliminate 'unreachable code' after CV_Error() (MSVC 2015)

* build: eliminate 'unreachable code' warning for MSVS 2015/2017

- observed in constructors stubs with throwing exception

* GAPI: fix various gapi related typos

Fixes source comments and documentation related to gapi code.

* Fix source typos

* Fixed typos requested

* Follow-up typo fix

G-API: VPP preprocessing GIEBackend integration

* Add ROI in VPP prepro

* Apply comments

* Integration to IE

* Removed extra invocations

* Fix no-vpl compilation

* Fix compilations

* Apply comments

* Use thin wrapper for device & ctx

* Implement Device/Context constructor functions

* Apply samples comment

* Fix compilation

* Fix compilation

* Fix build

* Separate Device&Context from selector, apply other comments

* Fix typo

* Intercept OV exception with pretty print out

[G-API] Handle exceptions in streaming executor

* Handle exceptions in streaming executor

* Rethrow exception in non-streaming executor

* Clean up

* Put more tests

* Handle exceptions in IE backend

* Handle exception in IE callbacks

* Handle exception in GExecutor

* Handle all exceptions in IE backend

* Not only (std::exception& e)

* Fix comments to review

* Handle input exception in generic way

* Fix comment

* Clean up

* Apply review comments

* Put more comments
* Fix alignment
* Move test outside of HAVE_NGRAPH

* Fix compilation

G-API: Add VPL/VPP preproc core module

* Add BaseMediAdapter for VPL

* Add PreprocSession & PreprocEngine interface part

* Implement preproc UT, Fix base path

* Add common PP interface, add common pp_params

* Rough decoupling VPL & Preproc

* Add syntax sugar for PP interface

* Integrate VPP preproc in GIEbackend

* Add PP bypass

* Add perf tests for PP

* Fix warning in vpl core UT

* Add inner preproc resolution Unit Test

* Remove VPP preproc description from single ROI sample

* Apply SetROIBlob for diferent Infer operations

* Eliminate extra branch-lines for cfg_param_parser & transcode_engine

* Fix UT warning &PreprocSession compile

* Fix compilation & warnings

* Reduce Session&Engine code amount

* Apply some comments

* Revert IE changes, rename preproc

* Fix for DX11 infer for OV: turn off texture array

* Remove dependency PP on IE

* Change fixture tests params

* Apply other comments & turn off ROI for GPU

* Fix compilation: remove forgotten INFER define

* Apply debt comments

* Fix PP UTs: add FrameInfo value comparator

* Fix style

* Remove standalone map for preproc frames storage

* Add other comments

[G-API] Handle errors in IEBackend & modeling tool

* Handle errors in IEBackend & modeling tool

* Handle exceptions in callback

* Add const cv to exception

[G-API] Pipeline modeling tool - Fix generating FP16 Mat

* Fix handling fp16 precision

* Disable preproc in case FP16 input inside IE backend

* Fix isApplicableForResize function

G-API media format gray

G-API: oneVPL DX11 inference

* Draft GPU infer

* Fix incorrect subresource_id for array of textures

* Fix for TheOneSurface in different Frames

* Turn on VPP param configuration

* Add cropIn params

* Remove infer sync sample

* Remove comments

* Remove DX11AllocResource extra init

* Add condition for NV12 processing in giebackend

* Add VPP frames pool param configurable

* -M Remove extra WARN & INFOs, Fix custom MAC

* Remove global vars from example, Fix some comments, Disable blobParam due to OV issue

* Conflict resolving

* Revert back pointer cast for cv::any

Adapt remote inference to operate with NV12 blobs

* Media Frame Adapter support

* address comments

[G-API] Enable 2D inputs for GIEBackend

* Enable 2D inputs

* Fix typo

[G-API] Fix bugs in GIEBackend

* Remove inputs/outputs map from IEUnit

* Add test

* Add NV12 test

* Reorganize setBlob function

* Check that backend don't overwrite blob precision

* Stop setting config to global IE::Core

* Replace mutable to const_cast

* Update modules/gapi/test/infer/gapi_infer_ie_test.cpp

* Update modules/gapi/test/infer/gapi_infer_ie_test.cpp

* Make blob parameter as const ref

* Cosmetic fixes

* Fix failed test on inferROI

* Removed double ref for ii

* Disable tests

* Skip tests if device not available

* Use Sync prim under shared_ptr to avoid issue on MAC

* Apply WA for IE::Core

* Apply WA for MAC build

* Try to apply another WA

* Not release IE::Core for apple

* Put comment

* Support PreprocInfo for

* InferROI
* InferList
* InferList2

* Remove empty line

* Fix alignment
Co-authored-by: NMaxim Pashchenkov <maxim.pashchenkov@intel.com>

G-API: Extend ie::Params to specify batch size

* Add cfgBatchSize to ie::Params

* Fix comments to review

[G-API] Prohibit setPrecision & preprocessing for importedNetworks

* Prohibit preprocessing for imported networks

* Fix typo

input_names -> output_names

* Move setBlob logic to separate function

* Change comment

[G-API] Support FP16 input precision for IE backend

* Support fp16 input precision IE backend

* Add support to wrapIE

G-API: Support remote inference

* Extend MediaFrame to be able to extract additional info besides access

* Add API for remote inference

* Add default implementation for blobParams()

* Add default implementation for blobParams()

* Address review comments

* Fix any_cast usage

* Add comment on the default blobParams()

* Address review comments

* Add missing rctx

* Minor fix

* Fix indentation and comment

* Address review comments

* Add documentation

[G-API] IE backend convert fp32 to fp16

* Support FP16 in IE backend

G-API: ONNX. Adding INT64-32 conversion for output.

* Added int64 to 32 conversion

* Added warning

* Added type checks for all toCV

* Added type checks for tests

* Small fixes

* Const for fixture in test

* std::tuple if retutn value for toCV

* Mistake

* Changed toCV for tests

* Added Assert

* Fix for comments

* One conversion for ONNX and IE

* Clean up

* One more fix

* Added copyFromONNX

* Removed warning

* Apply review comments

G-API: IE. Adding support for INT32 type.

* Added support for int32

* Added sample for semantic-segmentation-adas-0001

* Alignment

* Alignment 2

* Rstrt build

* Removed test for sem seg

[G-API] Support generic infer overloads

* Overloads for generic infer

* Fix build

* Refactoring

* Fix docs

* Put extra stuff to detail namespace

* Add doc for usings

* Remove uneccessary template in Priv