INGEST: Document Pipeline Processor (#33418)
INGEST: Document Pipeline Processor (#33418)

* Added documentation for Pipeline Processor
* Relates #33188
strapdata/elassandra,vroyer/elassandra,strapdata/elassandra,strapdata/elassandra,strapdata/elassandra,strapdata/elassandra,vroyer/elassandra,vroyer/elassandra