[feature] Add Timeout for long execution

[abonne01]

Hello,

I'm scanning with this lib all my passwords. But tome of them are token/keys, which are quite long.
Analyze them can take sometimes more than 30min.

Could you add timeout parameter? or a check for length ?

Thanks a lot.

[Tostino]

I'd prioritize this feature, or something similar.

I've had user reports of crafted passwords causing stackoverflows, so bounding the runtime / problem space is necessary.
I also found a repo by a government contractor that contains exploits to help attack programs which use zxcvbn based algorithms for password strength: https://github.com/twosixlabs/acsploit/commits/fd5602adf9f312482b8010abf6b4691f08929bc4/acsploit/exploits/passwords/zxcvbn.py