CiPipeline@ReducedOpsBuild (#4917)
* cancel night build on pyop
* setup ci pipeline for build of reduced ops
* add back c# test
* remove debugging print
* add testing model
* add more arg in pipeline script
* disable pipeline trigger temporarily
* fix yaml format
* fix yaml format
* fix pipeline error
* rid c# test
* add ops for test cases
* add Conv from domain com.microsoft.nchwc
* remove --reduce_ops
* fix typo
* remove --build_java
* add test case for excluded op
* update doc with --skip_test
* formatting code, renaming files and simplify yaml
* remove debug build from yaml
* remove surplus ops from included_ops.txt
* add MinSizeRel build to yaml
* rename test cases and models
* exclude ir test from minimum build
* restrict ir test to be only applied to reduced ops build
