[ad-hoc] [3] sleep mode type

[nikhilsaraf]

Desired Behavior

I want to be able to have the bot sleep at either the beginning of the update cycle or the end. The bot currently always sleeps at the end of the update cycle

Impact

The desired behavior will allow me to have the bot update closer to the end of a ledger update

Feature Suggestion

We can achieve the desired behavior by adding a sleep mode identified by "begin" or "end" and sleep either before or after the update() function accordingly