Add support for delete planning with limits in presence of foreign keys

[GuptaManan100]

Description

This PR makes the changes to support delete queries with limit along with foreign keys. After the changes in this PR, queries like the following now work -

delete from u_tbl10 order by id limit 1

Fuzzer tests for the same have been added and verified everything is working as intended.

Related Issue(s)

• Part of RFC: Foreign Key Support in Vitess #12967

Checklist

• "Backport to:" labels have been added if this change should be back-ported to release branches
• If this change is to be back-ported to previous releases, a justification is included in the PR description
• Tests were added or are not required
• Did the new or modified tests pass consistently locally and on CI?
• Documentation was added or is not required

Deployment Notes

[vitess-bot]

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[GuptaManan100]

The changes in this PR are based on top of #15081 and should be merged after it.

[codecov]

Codecov Report

Attention: 50 lines in your changes are missing coverage. Please review.

Comparison is base (aecf793) 47.80% compared to head (99706e2) 47.79%.

Files	Patch %	Lines
go/vt/vtgate/planbuilder/operators/delete.go	0.00%	47 Missing ⚠️
go/vt/vtgate/engine/delete_with_input.go	0.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15097      +/-   ##
==========================================
- Coverage   47.80%   47.79%   -0.02%     
==========================================
  Files        1155     1155              
  Lines      240308   240352      +44     
==========================================
- Hits       114890   114868      -22     
- Misses     116846   116911      +65     
- Partials     8572     8573       +1     

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[frouioui]

is it expected to modify the original deletect by setting Limit and OrderBy to nil?

[harshit-gangal]

select has the limit and order by. original query is removed and a where condition is added to provide the values for it from the select