added folder lookup

[SimHeb]

Added the following functions

1. get_folder --> gets a folder by ID, can get_all_children=True if needed
2. get_folder_by_path --> gets a folder by a given folder_path, can get_all_children=True if needed
3. lookup_folders and get_folder_json are helper functions created according the get_secret_json respectively.
4. get_child_folder_ids_by_folderid --> gets a list of child folder IDs from a given folder IDs. limitToDirectDescendents is set to true to only get the actual child folders, to prevent bigger JSON loads.
5. Added a SecretFolder DataClass which represents a folder struct in python
   All functions have been tested with pytest.

[tylerezimmerman]

@SimHeb thanks for the contribution! We are looking into getting the test failures resolved.

[delinea-rajani]

@SimHeb
Following steps will resolve the test failures.

1. You need to add TSS_FOLDER_PATH under passenv in the tox.ini file.
   

2. Add all environment variables by navigating to:
   GitHub => Settings => Actions => Repository Secrets => New repository secret, in your branch SimHeb:main because test cases are running on your repository.
   

[SimHeb]

Hey @delinea-rajani,

Thank you very much for your fast response. Unfortunately I am unable to test this without further changes, since we do not have a cloud secret server instance on hand.