feat: Add VEC_PRODUCT, VEC_ELEM_PRODUCT, VEC_NORM.

[linyihai]

I hereby agree to the terms of the GreptimeDB CLA.

Refer to a related PR or issue link (optional)

Part of #5120

What's changed and what's your intention?

Add VEC_PRODUCT(col), VEC_ELEM_PRODUCT(vec), VEC_NORM(vec)

PR Checklist

Please convert it to a draft if some of the following conditions are not met.

• I have written the necessary rustdoc comments.
• I have added the necessary unit tests and integration tests.

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[codecov]

Codecov Report

Attention: Patch coverage is 85.56701% with 42 lines in your changes missing coverage. Please review.

Project coverage is 83.88%. Comparing base (4d6fe31) to head (e162b06).
Report is 40 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5303      +/-   ##
==========================================
- Coverage   84.07%   83.88%   -0.19%     
==========================================
  Files        1199     1205       +6     
  Lines      224316   226331    +2015     
==========================================
+ Hits       188583   189854    +1271     
- Misses      35733    36477     +744     

[killme2008]

LGTM. Thanks a lot.

[linyihai]

All the comments had beend addressed. Thank your for another review.

[killme2008]

LGTM. Thanks a lot.