CU-869574kvp update snomed preprocessing naming (#469)

* CU-869574kvp: Add pattern based release version identifying for Snomed preprocessing

* CU-869574kvp: Add tests for pattern-based snomed release identification

* CU-869574kvp: Update Snomed preprocessing:

Separate extensions into an Enum.
Do the release/paths check at init to allow for early failures in case of issues

* CU-869574kvp: Simplify mappings somewhat.

Move common avoids to a common location.
Fix UK Drug relationship name

* CU-869574kvp: Simplify mappings somewhat more.

Remove some clutter by separating common prefixes for release types and file names.

* CU-869574kvp: Simplify mappings somewhat more, agai.

Remove some clutter by separating common suffixes for release types.

* CU-869574kvp: Update preprocessing.

New abstraction. Use supprted extensions which describe their file formats along with bundles which give some further insight and control.

* CU-869574kvp: Fix data class init

* CU-869574kvp: Fix issue with file paths

* CU-869574kvp: Fix a UK Clinical description file path

* CU-869574kvp: Add (optional) 2nd part of folder name to extension.

For AU models, the folder name seems to be 'SnomedCT_Release_AU1000036_20240630T120000Z', so the 1st part is just 'Release' and the 2nd part is indicative of AU.
Add usage of this where relevant.

* CU-869574kvp: Fix preprocessing tests.

Add patch for files/folders where applicable.
Change the paths of attributes where applicable.