[LITE][XPU] 1. Add precision switch(int16/int31) in XPUMultiEncoderOp; 2. Fix identity_dropout_eliminate_pass, |AttrType| of 'is_test' in OpDesc can be INT or BOOLEAN; 3. Enhance |__xpu__multi_encoder_fuse_pass|; (#3596)

* [LITE][XPU] Add precision switch(int16/int31) in XPUMultiEncoderOp

* [LITE][XPU] fix identity_dropout_eliminate_pass, |AttrType| of 'is_test' in OpDesc can be INT or BOOLEAN

* test=develop

* [LITE][XPU] suppress linkage error
test=develop

* [LITE][XPU] 1. Reorder |identity_dropout_eliminate_pass| before |__xpu__multi_encoder_fuse_pass|; 2. Enhance |__xpu__multi_encoder_fuse_pass|, it works well in more scenarios;
test=develop

* [LITE][XPU] Remove XPUConfig
test=develop

* test=develop, support WITH_TESTING=ON on windows

test=develop, modify the path of test_file in build_windows.bat

test=develop, modify the docment of windows compilation

test=develop, modify the document

* test=develop, modify the build_windows.bat

* add eltwise_activate_fuse. test=develop

* [LITE] Set high perf mode as default in mobile_light deme; Fix Precision Profiler caused by X86 header; Enhance profiler for opencl. test=develop

* v2.6 supports mask_demo, test=develop

* add crop
* add crop ut. test=develop
* fix format,test=develop

 fix reshape infer shape issue  
adaptive pool, 
support adaptive pool2,  
multi thread ok,   
optimize global pool, 
support faceboxes and behavior image, 
realize bm device info, 
multi device ok, 
support multi cards, 
support efficienet

* remove lite_with_clang, test=develop

* fiix format, test=develop

* [LITE][OPENCL] add gpu perf mode, priority level for qcom adreno. test=develop

[OPs] [ARM Kernel]move assign_value op into basic ops, while moving fake ops about quantization into extra to balance lib size (#3518)

* fix:modify quant_op to extra and add one basic op&kernel

* fix: move fake op to extra