* Add test for int16 quantized model, test=develop

* [ASCEND] fix build for Ubuntu18.04 and GCC7.3, test=develop

* [ASCEND] address review comments, test=develop

* [cherry-pick] not build naive_buffer when build light framework, test=develop (#4251)

* fix opt fatal errors, test=develop (#4293)

* fix cmake dependencies, test=develop

* platform portability of tls, test=develop

* update build_ios.sh, test=develop

* add static keyword for tls, test=develop

* rename the alias of tls, test=develop

[CI][LITE][BM]Add the implementation of CI for BM1682 and add the demo for BM1682. test=develop (#4217)

* [CI][LITE][BM]Add the implementation of CI for BM1682 and add the demo for BM1682. test=develop

* [CI][LITE][BM]Add the implementation of BM1682'C

* input_vars of flatbuffers impl, test=develop

* add comments in build.sh, test=develop

* add build macros for flatbuffers, test=develop

[RKNPU] Adapting to the changing of the quantization parameters, and supporting the fully quantized mobilenetv1 model (#4046)

* [RKNPU] Adapting to the changing of the quantization parameters, and supporting the fully quantized mobilenetv1 model
test=develop

* [Doc] Update the doc for apu and rknpu
test=develop

* add elu act

* fix elu act not find error, test=develop

* fix format.test=develop

* fix int8 model opt error in conv+conv fusion, test=develop

* fix format. test=develop

* test=develop

* [ASCEND] Add Huawei Ascend310 support, test=develop

* [ASCEND] fix some typos, test=develop

* [ASCEND] address comments and fix opt ci python file, test=develop

* [ASCEND] update based on new ascend env, test=develop

* [ASCEND] update after develop merge, test=develop

* [Core][ARM] Fix beam_search, eltwise_mul supports broadcast and int64_t data type, add print op and kernel, add exeception
test=develop

* Fix the dims of parent idx of the arm kernel of beam_search op

* elementwise_mul supports int64_t data type with broadcasting

* Add print op and kernel for debugging

* Support throwing the exception when the internal error occurs

* Refine while and conditional_block op kernel

* Support the graph optimization on subblocks

* Pass program_desc and block_idx into the kernel of the control flow ops(while/conditional_block/subgraph), and create the RuntimeProgram online, it make it possiable to call the control flow ops recursively

*Add unit test for masked transformer model

* add opencl valid api for device

* [LITE][BM] modify interpolate if,test=develop

* [LITE][BM] add include math.h, test=develop

add a CI rule:  You must have Superjomn approval for change 20+ files or add than 1000+ lines of content  (#3727)

* test=develop, add a CI rule

* test=develop, remove the debug messages

* reduce .so size. test=develop

* compile all targets when LITE_ON_TINY_PUBLISH=OFF

* unordered_map is more convenient when key is customized class

* test=develop

* test=develop,test=coverage, support coverage CI on x86 server

* test=develop,test=coverage, fix the conflict

* test=develop,test=coverage, add target code_coverage

* test=develop,test=coverage, modify the coveralls.cmake