feat: adding stop() method

[mennafabio]

Describe the PR
This feature resolves #98 by adding a stop method to interrupt and close all thread pools and connections sockets within 30 seconds timeframe.

Checklist

• This PR contains environment variables
• Documentation has been updated
• Tests have been added
• This PR contains breaking changes

[surajkumar]

Thanks for the PR! I have a bad memory, can you remind me of your discord username?

[mennafabio]

Thanks for the PR! I have a bad memory, can you remind me of your discord username?

Sure! :-) discord name is: dexxtrr
But im not in any server, was that required for contribution?

[surajkumar]

Thanks for the PR! I have a bad memory, can you remind me of your discord username?

Sure! :-) discord name is: dexxtrr But im not in any server, was that required for contribution?

That's no problem, I thought you were in there so I was a bit confused. Thanks for the contribution, will get it reviewed very soon.

[SquidXTV]

Also what about the ignored InterruptedException in the DiscordRequestDispatcher#run method? Wouldnt they cause problems if the executor actually interrupts the thread?

[surajkumar]

LGTM

[mennafabio]

error from my side, i forgot to add my new gpg key. therefore i opened a new PR #115 with my signed cherry-picked commits.
@surajkumar guess you can close this one since merge is blocked due to unsigned commits in this one