Added a new parameter to value_counts to keep both counts and normalized values.

[Keramatfar]

• closes #xxxx (Replace xxxx with the GitHub issue number)
• [*] Tests added and passed if fixing a bug or adding a new feature
• [*] All code checks passed.
• [*] Added type annotations to new arguments/methods/functions.
• [*] Added an entry in the latest doc/source/whatsnew/vX.X.X.rst file if fixing a bug or adding a new feature.

[rhshadrach]

Thanks for the PR! I'm negative on returning numeric data as strings. I'm also negative on adding a keyword to this function. I suggest you open up an issue to request this feature and have discussion take place there.