Rubocop style enable/disable comments for ignoring warnings

[KieranP]

When coming across false positives, having to find the fingerprint of each brakeman error we want to ignore is a bit tedious. And then if the code around the error changes, the fingerprint needs updating. I'd like to suggest brakeman add support for rubocop style enable/disable comments, which would be much more convenient.

# brakeman:disable sql_injection
User.where(....).....
# brakeman:enable sql_injection