PR for refactoring some aspects of the code

[yusuf1759]

I have done a little bit of work refactoring the code base based on the suggestions and comments I got from users. Here are some of the things I did:

1. Wrote tests for the vscreenml.
2. Type hinting
3. Numpy-style docstring
4. Created a proper VS pipeline, what we had before for per complex prediction pipeline
5. Centralized all the loose code, all the loose *.py files like parse_binana.py are all gone. Now, there will not be any issues with some missing files.
6. There were some complaints about exceptions that were not catching anything, those are all fixed now.
7. And many more

[pkiruba]

@yusuf1759 Please go ahead and merge the PR. Everything seems good. Small check required in the MIT license file which seems to be not working properly.

[linminhtoo]

hi @yusuf1759 will you merge this PR please?