Add support in Commons CSV for tracking byte positions during parsing.

[DarrenJAN]

Summary of Modifications

1. Test Data Files: Added new test data files, and updated pom.xml to exclude these files from RAT checks, avoiding unapproved license checks.
2. CSVParser class:
   Constructor Enhancements
   a. Added support for an optional parameter -- String encoding--, which specifies the encoding to use for the reader.
3. CSVRecord class

• private long characterByte: start byte position of this record
  Add new Constructor: support track byte positions in record class

5. ExtendedBufferedReader Class:

• private long bytesRead: Tracks the number of bytes read so far.
• private long bytesReadMark: Stores the marked byte position.
• CharsetEncoder encoder: Encoder used to calculate byte size of characters.
• getCharBytes(int current): This function calculates character bytes based on UTF-8 encoding. Note: it only supports UTF-8 due to the encoding algorithm used. Full encoding can be supported and we just need more effort on this.
• reset() and mark() Methods: Enhanced to prevent consuming characters and bytes unintentionally.

Test result:
mvn


Pass unit tests and other restrictions

[yunzvanessa]

I believe Matt modified this file as well in 2017

[DarrenJAN]

1. Needs to replace the jar and regression test before merge
2. Remember to squash and merge

[DarrenJAN]

There is a functional bug in the mlcp that needs to be addressed