Improve the projection operator with renaming and re-ordering columns

[zuozhiw]

We want to finish the PR #1134, which allows projection to re-order columns.

Ideally, the new projection operator can do: 1) re-order columns, 2) drop columns (by selecting the checkbox), and 3) rename columns.

But if it's hard to combine into one single operator, one alternative implementation is to have 1) a projection operator that can do reordering and dropping, and 2) add a new renaming operator that only does renaming.

[zuozhiw]

Update: we want to separate renaming and re-ordering: projection only supports dropping and renaming columns, we add another renaming operator to handle renaming

[Xiao-zhen-Liu]

Update Apr. 17 2023: Related to #1134.

[shengquan-ni]

@Yicong-Huang will finish it.