Enforce sorted imports

[TwitchBronBron]

Add rule to enforce imports are in alphabetic order. If there's a space between a group of imports, that's a new group and should be sorted on its own. For example:

'this group of 3 is sorted together
import "a"
import "b"
import "c"

'this group of 2 is sorted together
import "d"
import "e"