Implement a timelock for JiaoziChef contract owner

There has been much discussion in the community surrounding the need for a timelock on the JiaoziChef contract.

The reasoning for initially going without the timelock, was to be able to move fast, and add pools without any delay, however it does introduce some small attack vector mentioned by Laoban in telegram. https://t.me/JiaoziFarm/9187

Although a very small edge case, I am proposing the introduction of a timelock for the JiaoziChef contract in order to alleviate any issues, and make the community feel safer.

Cons:

• Slower to add new pools

Pros:

• Feel safu
• Makes changes and pool additions better thought out

With this in mind, I have proposed 4 options, to keep no timelock, and 12, 24, and 48 hours.

The Jiaozi farmers are big brained, high IQ, and without doubt the Chadest of farmers. There is little doubt the right decision will be made.