Feature arm yuv2bgra

[quinnrong94]

1. 实现YUV转BGRA；
2. 增加YUV转BGR和YUV转BGRA单元测试；
3. cvtColor性能测试结果：https://docs.qq.com/sheet/DVUxFYWtSRlZ4bUN5?tab=ey8zci

[codecov-commenter]

Codecov Report

Merging #381 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #381   +/-   ##
=======================================
  Coverage   21.34%   21.34%           
=======================================
  Files         274      274           
  Lines        8253     8253           
=======================================
  Hits         1762     1762           
  Misses       6491     6491           

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