Replace String tag with proprietary object to store their vote

[dukeyin]

Currently, TagList is List:

musicbrainzws2-java/src/main/java/org/musicbrainz/query/submission/EntityElement.java

Line 34 in f280b10

private List<String> tagList = new ArrayList<String>();

Instead of String, each Tag should really be an object with both a name and a vote (upvote, downvote, withdraw), which enables the user to submit modifications to their tags rather than a complete replacement:
https://musicbrainz.org/doc/MusicBrainz_API#tags

[dukeyin]

(nevermind, was using UserRatingSubmissionWs2 instead of UserTagSubmissionWs2)