Refactor commentTags functionality (#17558)

Refactor commentTags functionality (#17558)

* feat: Allow multiple tags on comments

- Allow for multiples tags(Currently Poster + {Owner, Writer}).
- Utilize the Poster tag within the commentTag function and remove the
checking from templates.
- Use bitwise on CommentTags to enable specific tags.
- Don't show poster tag(view_content.tmpl) on the initial issue comment.

* Change parameters naming

* Change function name

* refactor variable wording

* Merge 'master' branch into 'tags-comments' branch

* Change naming

* `tag` -> `role`

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>