feat: Add CometRowToColumnar operator #389

Job	Run time
ubuntu-latest/java 8-spark-3.4/rust	5m 29s
macos-14(Silicon)/java 8-spark-3.4/rust	4m 2s
ubuntu-latest/java 8-spark-3.4/java	3m 46s
ubuntu-latest/java 8-spark-3.2/java	4m 0s
macos-14(Silicon)/java 8-spark-3.4/java	3m 15s
ubuntu-latest/java 17-spark-3.4/rust	5m 33s
ubuntu-latest/java 8-spark-3.3/java	4m 7s
macos-14(Silicon)/java 17-spark-3.4/rust	3m 59s
ubuntu-latest/java 17-spark-3.4/java	3m 54s
ubuntu-latest/java 11-spark-3.3/java	3m 57s
macos-14(Silicon)/java 17-spark-3.4/java	3m 16s
ubuntu-latest/java 17-spark-3.3/java	3m 58s
macos-14(Silicon)/java 8-spark-3.2/java	3m 15s
${{ matrix.os }}/java ${{ matrix.java_version }}-spark-${{ matrix.spark-version }}/${{ matrix.test-target }}	0s
macos-14(Silicon)/java 17-spark-3.3/java	3m 46s
	56m 17s

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