Enhancement: Export CSV with additional fields/columns like Comment, User, Comment Date, Branch

[chswap]

@borisbsu

CSV Export plugin shall able to export additional fields/columns like Comment, Username, Created Date, Branch data in CSV file.
Below are the mappings for additional fields/columns with Web API endpoint api/issues/search:
Parameter: additionalFields=_all

Json field	CSV Column Name
"htmlText"	Comment
"login"	User
"createdAt"	Comment Date
"branch"	Branch Name

Above information in CSV report will be useful for tracking Issues Justification/Comment across branches.

Thanks,
Swapnil