Execute wait/coroutine/suspend

Execute wait <wait type> <parameter>

This would not delay the commands after it if put in an mcfunction.

Execute wait stops the next parts of execute from being run until the execute wait type has been fulfilled

Parameters could be : execute wait delay - Suspends the command for a set delay

execute wait function - Suspends the command until the function returns or ends execute wait game_event Suspends the command until the game event is done by @s

execute wait advancement - Suspends the command until the advancement is obtained by @s. If advancement is already obtained, instantly trigger the wait

Execute wait advancement and game event are optional, but would be nice

Execute suspend <wait type> <parameter>

Same as execute wait, but will suspend the whole function, rather than just the command it's attached to

Execute coroutine <function>

Runs a function as a coroutine, which will allow the function to run simultaneously with the current one if execute suspend is used in the function.