[Delta][VL] Support IncrementMetric expression

[dcoliversun]

Description

Delta uses IncrementMetric to count the number of rows passing through it.

More info: https://github.com/delta-io/delta/blob/master/spark/src/main/scala/org/apache/spark/sql/delta/metric/IncrementMetric.scala

We found the operation with expression fallbacks.

== Fallback Summary ==
(4) Project: Not supported to map spark function name to substrait function name: true, class name: IncrementMetric.
(25) Project: Not supported to map spark function name to substrait function name: false, class name: IncrementMetric.

== Physical Plan ==
VeloxColumnarToRowExec (32)
+- ^ ProjectExecTransformer (30)
   +- ^ FilterExecTransformer (29)
      +- ^ InputIteratorTransformer (28)
         +- RowToVeloxColumnar (26)
            +- Project (25)
               +- VeloxColumnarToRowExec (24)
                  +- ^ ShuffledHashJoinExecTransformer FullOuter BuildLeft (22)
                     :- ^ InputIteratorTransformer (14)
                     :  +- ShuffleQueryStage (12), Statistics(sizeInBytes=<> GiB, rowCount=<>)
                     :     +- ColumnarExchange (11)
                     :        +- ^ ProjectExecTransformer (9)
                     :           +- ^ FilterExecTransformer (8)
                     :              +- ^ InputIteratorTransformer (7)
                     :                 +- RowToVeloxColumnar (5)
                     :                    +- * Project (4)
                     :                       +- VeloxColumnarToRowExec (3)
                     :                          +- ^ Scan parquet spark_catalog.<db>.<tbl>(1)
                     +- ^ InputIteratorTransformer (21)
                        +- ShuffleQueryStage (19), Statistics(sizeInBytes=<> GiB, rowCount=<>)
                           +- ColumnarExchange (18)
                              +- ^ ProjectExecTransformer (16)
                                 +- ^ Scan parquet spark_catalog.<db>.<tbl>(15)

[zhztheplayer]

@dcoliversun Hi, I just bumped into the relevant code. Do you know whether we have some test cases for PR #7111 in the code base?