Feature suggestion: sniff to discourage/forbid use of `goto` language construct

[jrfnl]

Usage of goto is often seen as a typical code smell.

AFAICS there is currently no sniff to detect usage of goto and discourage/forbid it.

Is there any interest for a Generic.PHP.DiscourageGoto sniff to detect this ? I'd be happy to create a PR for this.

[gsherwood]

There is no sniff that I know of. Seems like a good idea, and happy to accept a PR for it.

[jrfnl]

Sniff created, see PR #1664