Addition of get_info() under Python Parser

[reshinthadithyan]

Motivation

As discussed, given a .py file, can we get an overall mapping of the given code file. As of now, added the skeleton in the Parser Class as get_info().

get_info()

This function get_info() will return a dictionary of the following structure.
{ "functions":[ "func1" : { "doc_string":[ 'corresponding doc_string'],"body":[ 'corresponding doc_string']"}, "func2" : {...........}, } "classes":[ "class1": { "doc_string":[ 'corresponding doc_string']}, "class2": {........}, } }

Conclusion

We'll review the structure if needed. Thanks!

[rcshubhadeep]

This is a nice and welcome addition. @reshinthadithyan thanks. Do you think you can add similar to other parser classes and also write some tests for this use-case? That would be great for this PR.

Please let me know.