Semicolon Fixers

Replaces #511.
* `space_before_closing_semicolon`
* `whitespace_before_closing_semicolon`

One time space, other whitespace. Worth to use same one. Most of fixers use `space` in descr.

Maybe change it into sth like:
* `spaces_before_semicolon`
* `multiline_spaces_before_semicolon`
?