[IMPROVE] Consolidate Openbb_Terminal Folders

[simmonsj330]

What's the feature that should be improved?
In the PR: #2593, there was discussion about changing the folder structure so that folders and files necessary for the terminal and pip install are not located outside the openbb_terminal folder. This has an added benefit for pip installs where we are not polluting an environment's site-packages with folders and files that may cause conflicts with other unrelated packages.

Currently our folder structure is as followed:

openbbterminal/
   some/
   other/
   packages/
   openbb_terminal/

This enhancement will change the folder structure to:

openbbterminal/
   openbb_terminal/
      some/
      other/
      packages/

Describe how you would like the feature improved

1. Consolidate as many of the necessary folders/files for the terminal into the openbb_terminal folder while maintaining functionality.