NIFI-4735: ParseEVTX only outputs one event per chunk

[szaboferee]

This change is based on #2489

I have reproduced the issue with some additional test cases and test files then applied the original fix.

commit message from the original change:
Updated the EVTX FileHeader class to correctly check if there are more chunks in the file. Previously this would not process the last chunk.

Updated the EVTX ChunkHeader class to correctly check if there are additional records in the chunk. Previously this would only process the first record of each chunk. It was using the fileLastRecordNumber where it should have been using the logLastRecordNumber value.

Updated the EVTX unit tests to have the correct expected number of events and use the logLastRecordNumber.

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[mattyb149]

+1 LGTM, thanks to @arpadboda for the review and thank you @szaboferee for the fix! Merging to master