[feature](Nereids)add the ability of projection on each ExecNode and add column prune on OlapScan (#11842)

We have added logical project before, but to actually finish the prune to reduce the data IO, we need to add related supports in translator and BE.
This PR:
- add projections on each ExecNode in BE
- translate PhysicalProject into projections on PlanNode in FE
- do column prune on ScanNode in FE

Co-authored-by: HappenLee <happenlee@hotmail.com>

be/src/vec/exec/vtable_function_node.cpp

@@ -117,7 +117,7 @@ Status VTableFunctionNode::get_expanded_block(RuntimeState* state, Block* output
         if (_child_block->rows() == 0) {
             while (_child_block->rows() == 0 && !_child_eos) {
                 RETURN_IF_ERROR_AND_CHECK_SPAN(
-                        child(0)->get_next(state, _child_block.get(), &_child_eos),
+                        child(0)->get_next_after_projects(state, _child_block.get(), &_child_eos),
                         child(0)->get_next_span(), _child_eos);
             }
             if (_child_eos && _child_block->rows() == 0) {