Optimize Join using Values Statement

[harshit-gangal]

Description

Related Issue(s)

Implements #16508

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[codecov]

Codecov Report

Attention: Patch coverage is 10.34483% with 130 lines in your changes missing coverage. Please review.

Project coverage is 68.87%. Comparing base (e89f684) to head (431560b).
Report is 13 commits behind head on main.

Files with missing lines	Patch %	Lines
go/vt/sqlparser/ast.go	0.00%	57 Missing ⚠️
go/vt/vtgate/engine/join_values.go	0.00%	35 Missing ⚠️
go/vt/sqlparser/ast_funcs.go	19.35%	25 Missing ⚠️
go/vt/sqlparser/ast_format.go	0.00%	13 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #16703      +/-   ##
==========================================
- Coverage   68.93%   68.87%   -0.07%     
==========================================
  Files        1564     1566       +2     
  Lines      201371   201695     +324     
==========================================
+ Hits       138821   138916      +95     
- Misses      62550    62779     +229     

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[systay]

maybe we just fall back on ApplyJoin if we are not sure Values is valid?