feat(type): Add support for interval compound literal

[anshuldata]

• Introduced APIs to create Literal of type IntervalCompound and IntervalYearToMonth

[codecov]

Codecov Report

Attention: Patch coverage is 90.71038% with 17 lines in your changes missing coverage. Please review.

Project coverage is 54.53%. Comparing base (597afdb) to head (7d7c57a).
Report is 1 commits behind head on main.

Files	Patch %	Lines
expr/interval_compound_literal.go	92.50%	6 Missing ⚠️
expr/interval_year_to_month.go	85.71%	5 Missing ⚠️
types/interval_compound_type.go	91.66%	3 Missing ⚠️
types/interval_year_month_type.go	89.28%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #44      +/-   ##
==========================================
+ Coverage   53.40%   54.53%   +1.13%     
==========================================
  Files          23       27       +4     
  Lines        6179     6355     +176     
==========================================
+ Hits         3300     3466     +166     
- Misses       2687     2697      +10     
  Partials      192      192              

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[anshuldata]

I updated PR to do away with Option and have separate Literal Impl for IntervalDayToMonth and intervalCompound type. Kindly check @jacques-n @zeroshade

[anshuldata]

I have raised separate PR (#48) for proto update. Once it is merged I will rebase this PR

[anshuldata]

rebased PR. It is ready for re-review @jacques-n @zeroshade

[anshuldata]

rebased it

[anshuldata]

can you merge this @zeroshade, I don't have write access