feat: Add CometRowToColumnar operator

[advancedxy]

Which issue does this PR close?

This closes #119 and partially resolves #137

Rationale for this change

For ease testing with RangeExec operator in the short term. In the long term, this PR introduce a general way to enable Comet with row-based source exec nodes

What changes are included in this PR?

1. Introduce CometRowToColumnarExec to transform Spark's InternalRow into ColumnarBatch
2. CometArrowConverters and its corresponding ArrowWriters
3. Glue code to apply RowToColumnar transition

How are these changes tested?

1. added tests and existing test code
2. verify plan transition in the Spark UI

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 15.70513% with 263 lines in your changes are missing coverage. Please review.

Project coverage is 33.36%. Comparing base (aa6ddc5) to head (fb49a88). Report is 1 commits behind head on main.

Files	Patch %	Lines
...spark/sql/comet/execution/arrow/ArrowWriters.scala	0.00%	198 Missing :warning:
...l/comet/execution/arrow/CometArrowConverters.scala	0.00%	42 Missing :warning:
.../scala/org/apache/spark/sql/comet/util/Utils.scala	0.00%	8 Missing :warning:
...ain/scala/org/apache/comet/vector/NativeUtil.scala	0.00%	6 Missing :warning:
...org/apache/comet/CometSparkSessionExtensions.scala	78.57%	0 Missing and 3 partials :warning:
...pache/spark/sql/comet/CometRowToColumnarExec.scala	90.32%	1 Missing and 2 partials :warning:
...n/scala/org/apache/spark/sql/comet/operators.scala	33.33%	1 Missing and 1 partial :warning:
...n/scala/org/apache/comet/vector/StreamReader.scala	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #206 +/- ## ============================================ - Coverage 33.48% 33.36% -0.13% - Complexity 776 791 +15 ============================================ Files 108 111 +3 Lines 37178 37479 +301 Branches 8146 8192 +46 ============================================ + Hits 12448 12503 +55 - Misses 22107 22351 +244 - Partials 2623 2625 +2 ```

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[advancedxy]

Gently ping @sunchao and @viirya

[sunchao]

Sorry for the delay @advancedxy . I'll try to take a look soon.

[advancedxy]

@sunchao would you mind to take a look at this again, I should address most of your comments, please let me know if you have any other comments.

And sorry for the late update, I wasn't feeling well last week.

[sunchao]

Merged, thanks @advancedxy ! If any comments from @viirya are not addressed, we can do it in a separate PR. This PR has been open for too long :)

[advancedxy]

If any comments from @viirya are not addressed, we can do it in a separate PR.

Of course.

Thanks for @sunchao and @viirya's review, really appreciate that.