SNOW-1433003 raise NotImplementedError for Index APIs

[sfc-gh-vbudati]

1. Which Jira issue is this PR addressing? Make sure that there is an accompanying issue to your PR.

   Fixes SNOW-1433003

2. Fill out the following pre-review checklist:

   • I am adding a new automated test(s) to verify correctness of my new code
     • If this test skips Local Testing mode, I'm requesting review from @snowflakedb/local-testing
   • I am adding new logging messages
   • I am adding a new telemetry message
   • I am adding new credentials
   • I am adding a new dependency
   • If this is a new feature/behavior, I'm adding the Local Testing parity changes.

3. Please describe how your code solves the related issue.

   Raising NotImplementedError for Index APIs that have not been implemented. I also added documentation for them, and it should be tested.

[sfc-gh-nkrishna]

Thanks for creating all these docstrings -- left a few comments. Can we also add an index.rst (okay if we do in a follow-up PR)?

[sfc-gh-vbudati]

@sfc-gh-nkrishna there is a separate PR for documentation here: #1751
I want to get this one in before since the doc builder is not happy that the functions do not exist lol

[sfc-gh-yzou]

@sfc-gh-vbudati can you add a quick comment here that "any methods that not supported by the current Index.py but exists in native pandas index object should raise a not implemented error for now"

[sfc-gh-vbudati]

ah I missed this - I'll add it in the documentation PR here: #1751

[sfc-gh-yzou]

Thanks!