Snowflake add missing function definitions

[vil1]

Add entries in SnowflakeFunctionBuilder for functions that were used in the acceptance tests but not "defined" yet.

Note that the grammar around function_call has been reworked, this work is still in progress. Future work will include:

• completing the definition of builtin_function (functions that have special syntax)
• improving implementation around aggregate_function and ranking_windowed_function

[codecov]

Codecov Report

Attention: Patch coverage is 97.35099% with 4 lines in your changes missing coverage. Please review.

Project coverage is 97.94%. Comparing base (60850b1) to head (2b3fc75).

Files	Patch %	Lines
...parsers/snowflake/SnowflakeExpressionBuilder.scala	70.00%	3 Missing ⚠️
...abricks/labs/remorph/parsers/FunctionBuilder.scala	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #433      +/-   ##
==========================================
- Coverage   97.97%   97.94%   -0.04%     
==========================================
  Files          61       61              
  Lines        3894     4031     +137     
  Branches      483      483              
==========================================
+ Hits         3815     3948     +133     
- Misses         45       49       +4     
  Partials       34       34              

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[github-actions]

Coverage tests results

354 tests  ±0   292 ✅ +41   4s ⏱️ -2s
  2 suites ±0     0 💤 ± 0 
  2 files   ±0    62 ❌  - 41 

For more details on these failures, see this check.

Results for commit 2b3fc75. ± Comparison against base commit 60850b1.

♻️ This comment has been updated with latest results.

[jimidle]

I would like to merge #430 before we merge this so we don't start repeating the same edits. That PR finishes all functions except for the more exotic stuff like freeText. You can then use the TSQL grammar changes as a template without worrying I will change them half way through your own re-work on Snowflake.

[vil1]

I would like to merge #430 before we merge this so we don't start repeating the same edits. That PR finishes all functions except for the more exotic stuff like freeText. You can then use the TSQL grammar changes as a template without worrying I will change them half way through your own re-work on Snowflake.

What edits do you refer to? the one in FunctionBuilder?

[nfx]

Lgtm