Add new OptionsRaceConditionSniff

[rebeccahum]

Fixes #637.

Let the roasting begin, @jrfnl! 😄

[jrfnl]

@rebeccahum Instead of roasting (and sorry, yes it would be a painful roasting), let's try something different.

Let's start with a little exercise:

• Can you try to write out - in words, not code - the "code pattern" you are trying to look for ?
• Then make a list of all the requirements which need to be met for the code pattern to be considered a match.
• Next, look at the code you've written and try to find all the assumptions you've made in it to account for specific code samples instead of accounting for the pattern.