[BUG] `BothV()` not supported in Gremlin in Calcite-based Compiler

[BingqingLyu]

Describe the bug A clear and concise description of what the bug is.

As titled.

Below is an example query on lsqb dataset that illustrates the problem:

gremlin>  g.V().hasLabel("city").has("id", 111).bothE("isLocatedIn").bothV()
==>e[48167737][72088380363509640-isLocatedIn->648518346341351535]
==>e[48167890][72092778410023144-isLocatedIn->648518346341351535]
==>e[48169242][72066390130974264-isLocatedIn->648518346341351535]
==>e[48170302][72057594037953336-isLocatedIn->648518346341351535]
==>e[48170858][72092778410022784-isLocatedIn->648518346341351535]
==>e[48171593][72092778410034236-isLocatedIn->648518346341351535]
...

, where bothV() is ignored.

The logical plan looks like:

 GraphLogicalProject($f0=[_], isAppend=[false])
  GraphLogicalExpand(tableConfig=[{isAll=false, tables=[isLocatedIn]}], alias=[_], opt=[BOTH])
    GraphLogicalSource(tableConfig=[{isAll=false, tables=[city]}], alias=[_], fusedFilter=[[=(_.id, 111)]], opt=[VERTEX])

and the physical plan looks like:

    operations: [
        PhysicalOpr {
            opr: Scan(
                Scan {
                    scan_opt: Vertex,
                    ...
         }
        PhysicalOpr {
            opr: Repartition(
                Repartition {
                    strategy: Some(
                        ToAnother(
                            Shuffle {
                                shuffle_key: None,
                            },
                        ),
                    ),
                },
            ),
        },
        PhysicalOpr {
            opr: Edge(
                EdgeExpand {
                    v_tag: None,
                    direction: Both,
                    params: Some(
                        QueryParams {
                            tables: [
                                NameOrId {
                                    item: Some(
                                        Id(
                                            11,
                                        ),
                                    ),
                                },
                            ],
                            columns: [],
                            is_all_columns: false,
                            limit: None,
                            predicate: None,
                            sample_ratio: 1.0,
                            extra: {},
                        },
                    ),
                    alias: None,
                    expand_opt: Edge,
                    is_optional: false,
                },
            ),
        },
        PhysicalOpr {
            opr: Project(
                Project {
                   ...})}

which miss the GetV operator for bothV().

To reproduce, compiler configuration is as follows:

graph.planner.is.on=true
graph.planner.opt=RBO
graph.planner.rules=FilterIntoJoinRule, FilterMatchRule, ExtendIntersectRule, ExpandGetVFusionRule
graph.physical.opt=proto
gremlin.script.language.name=antlr_gremlin_calcite