* Remove unnecessary compiler flags
* Refactor CMakeLists.txt
* Tweak CMakeLists.txt for libtim_internal
* Tweak CMakeLists.txt for libtim-vx
* Make TIM_VX_ENABLE_TEST defaults to OFF
* Eliminate usage of include_directories
* Fix CI unit test
* Fix warnings relating to inheritance
* Keep graph output order in layout inference
Type: Code Improvement
* Fix typos in layout inference
Type: Code Improvement
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authored-by: Xiaoran Weng <Xiaoran.Weng@verisilicon.com>