Add support for in-place file processing for VRL files with RDW

[yruslan]

Describe the bug

Currently, when attempting to do in-place processing for VRL files with RDWs, you get the following error. This is because this mode does not have a built-in record extractor.

Code snippet that caused the issue

  df.write
    .format("cobol")
    .option("record_format","V")
    .option("is_rdw_big_endian", "true")
    .option("copybook_contents", copybook)
    .save(outputPath)

The error is:

java.lang.IllegalArgumentException: Cannot create a record extractor for the given reader parameters. Please check the copybook and the reader parameters.
	at za.co.absa.cobrix.cobol.processor.impl.CobolProcessorBase$.getRecordExtractor(CobolProcessorBase.scala:46)
	at za.co.absa.cobrix.spark.cobol.SparkCobolProcessor$.$anonfun$getRecordRdd$2(SparkCobolProcessor.scala:240)

Expected behavior

This format should be supported for in-place processing.

Context

• Cobrix version: 2.11.0
• Spark version: 3.5.4
• Scala version: 2.12

Copybook (if possible)