refactor(binder): split relation binding to sub mods

[xiangjinwu]

What's changed and what's your intention?

Split the binding of table_or_source, subquery, window_table_function, join to its own file.

This PR is purely code movement and the table_or_source refactor will be handled separately.

Not handled:

• bind_table is only used by delete to evaluate predicates in where.
• bind_table_source is only used by insert and delete as the target. BoundTableSource is also only used here.
• bind_table_or_source is used by the most common path of select from (batch & stream).

Ideally there should only be a bind_table -> BoundBaseTable, a bind_source -> BoundSource, and a bind_table_or_source -> Relation.

Checklist

- [ ] I have written necessary docs and comments
- [ ] I have added necessary unit tests and integration tests

Refer to a related PR or issue link (optional)

[github-actions]

license-eye has totally checked 725 files.

Valid	Invalid	Ignored	Fixed
720	3	2	0

Click to see the invalid file list

• src/frontend/src/binder/relation/join.rs
• src/frontend/src/binder/relation/subquery.rs
• src/frontend/src/binder/relation/table_or_source.rs

[codecov]

Codecov Report

Merging #1953 (6ffb0c6) into main (5160586) will decrease coverage by 0.05%.
The diff coverage is 83.81%.

@@            Coverage Diff             @@
##             main    #1953      +/-   ##
==========================================
- Coverage   70.94%   70.89%   -0.06%     
==========================================
  Files         617      621       +4     
  Lines       79946    79964      +18     
==========================================
- Hits        56719    56688      -31     
- Misses      23227    23276      +49     

Flag	Coverage Δ
rust	70.89% <83.81%> (-0.06%)	⬇️

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

Impacted Files	Coverage Δ
src/frontend/src/binder/mod.rs	100.00% <ø> (ø)
...ntend/src/binder/relation/window_table_function.rs	68.60% <ø> (ø)
src/frontend/src/binder/relation/join.rs	77.19% <77.19%> (ø)
src/frontend/src/binder/relation/mod.rs	82.22% <82.22%> (ø)
...rc/frontend/src/binder/relation/table_or_source.rs	86.60% <86.60%> (ø)
src/frontend/src/binder/relation/subquery.rs	94.73% <94.73%> (ø)
src/common/src/array/stream_chunk_iter.rs	57.54% <0.00%> (-41.24%)	⬇️
src/common/src/test_utils/test_stream_chunk.rs	40.45% <0.00%> (-28.38%)	⬇️
src/frontend/src/session.rs	45.64% <0.00%> (-0.68%)	⬇️
src/connector/src/filesystem/file_common.rs	80.44% <0.00%> (-0.45%)	⬇️
... and 24 more

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