strong and retain are synonymous but using strong along with  obsolete synonym retain in one file is negligent

Enable SSE optimization

  * DRY
  * switch to Cv32suf and remove fp32Int32
  * add Cv16suf

- one test for type_id;
- another for comments in JSON;

Fixes spelling in comment

resolve undeclared identifier close error

Fix for incorrect calcOpticalFlowPyrLK result evaluation with ARM NEON