Add directory support for generator to_configure parameter

[MattToast]

Changes in files.py

• Create aTaggedFilesHierarchy class to build a tree of directories of files that need to be configured
• Create a EntityFiles.tagged_hierarchy property, to assign a TaggedFilesHierarchy object to after checking the EntityFiles.tagged files
• Build EntityFiles.tagged_hierarchy in EntityFiles._check_files method

Changes in generator.py

• In the Generator._write_tagged_entity_files Replace loop over list of file paths with a DFS over TaggedFilesHierarchy
• Any files found in DFS are added to a list to be files to be configured

[al-rigazzi]

Very good work. Mostly style- and docstring-related comments. I like the TaggedFilesHierarchy class and its mechanisms. Good work!

[MattToast]

Changes:

• Addressed use of single character non-counting variables
• More descriptive docstrings (with fewer typos!)

[Spartee]

Couple changes requested, but overall looks great. Using Pathlib could make your life a little easier here, but I'll leave that up to you.

Some things I would like to see are more tests that cause the errors to be raised. (Some adversarial examples)

Let me know if you have any questions.

[Spartee]

Approved!! LGTM. Great work. thanks for responding to the feedback!

Overriding review as Al is on vacation