fix: unparse join without projection

[chenkovsky]

Which issue does this PR close?

• Closes Unparse of Joins is ignoring projections #15688.

Rationale for this change

There are two issues.

1. projection in scan table is dropped in try_transform_to_simple_table_scan_with_filters
2. projection in selectbuilder can only be setted once. it's ok if there's a projection plan outside, but for dataframe api or optimized logical plan. it's not always true. for join, we need to add selected expressions from left plan, and selected expressions from right plan.

What changes are included in this PR?

1. add projection in try_transform_to_simple_table_scan_with_filters
2. enable setting projection in selectbuilder twice for join logical plan.

Are these changes tested?

UT

Are there any user-facing changes?

No

[goldmedal]

Thanks @chenkovsky. The change and the testing look good to me. I only have some minor comments.

[goldmedal]

Thanks @chenkovsky