[VL] Improve scan only mode to include filter node

[zhouyuan]

Description

Currently the filter is already included in the scan node of "scan_only" mode. We could eliminate the filter node in vanilla Spark as Velox already did the filter in scan.

Cc @rui-mo

Gluten version

None

[FelixYBW]

benefit:

• remove the filter operator in Whole stage code gen
• skip the columns which are used by filter only

[rui-mo]

I'll follow-up, thanks.