feat(expr): add to_date function

[wangrunji0408]

I hereby agree to the terms of the RisingWave Labs, Inc. Contributor License Agreement.

What's changed and what's your intention?

resolve #11226

The expr_to_date_const_tmpl.rs is copied from expr_to_timestamp_const_tmpl.rs, which will be simplified in the following refactor #11134.

It also fixes the format of date with negative year.

- -2022-12-25
+ 2022-12-25 BC

Checklist

• I have written necessary rustdoc comments
• I have added necessary unit tests and integration tests
• I have added fuzzing tests or opened an issue to track them. (Optional, recommended for new SQL features Sqlsmith: Sql feature generation #7934).
• My PR contains breaking changes. (If it deprecates some features, please create a tracking issue to remove them in the future).
• All checks passed in ./risedev check (or alias, ./risedev c)
• My PR changes performance-critical code. (Please run macro/micro-benchmarks and show the results.)

• My PR contains critical fixes that are necessary to be merged into the latest release. (Please check out the details)

Documentation

• My PR contains user-facing changes.

Click here for Documentation

Types of user-facing changes

Please keep the types that apply to your changes, and remove the others.

• SQL commands, functions, and operators

Release note

Add function to_date ( text, text ) → date
Converts string to date according to the given format.
Example: to_date('05 Dec 2000', 'DD Mon YYYY') → 2000-12-05

[codecov]

Codecov Report

Merging #11241 (5839578) into main (a84d8e1) will decrease coverage by 0.02%.
Report is 7 commits behind head on main.
The diff coverage is 43.51%.

@@            Coverage Diff             @@
##             main   #11241      +/-   ##
==========================================
- Coverage   69.79%   69.77%   -0.02%     
==========================================
  Files        1359     1360       +1     
  Lines      225851   225946      +95     
==========================================
+ Hits       157630   157652      +22     
- Misses      68221    68294      +73     

Flag	Coverage Δ
rust	69.77% <43.51%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
src/expr/src/expr/mod.rs	62.96% <ø> (ø)
src/frontend/src/expr/pure.rs	93.44% <ø> (ø)
src/expr/src/expr/expr_to_date_const_tmpl.rs	1.88% <1.88%> (ø)
src/expr/src/vector_op/to_timestamp.rs	53.65% <28.57%> (-11.21%)	⬇️
src/common/src/types/datetime.rs	58.88% <50.00%> (-1.49%)	⬇️
src/expr/src/vector_op/to_char.rs	85.71% <100.00%> (+9.52%)	⬆️
src/frontend/src/binder/expr/function.rs	85.55% <100.00%> (+0.01%)	⬆️

... and 3 files with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more