[2020] Mostly simple class change suggestions so that an Elemental, Wargare, and Construct hero class may exist

Holy necro!!!

On the note of these missing classes, we aren’t planning on significantly altering any pre existing classes to change their types.

However, if and when we introduce new kingdoms, we will bring new classes. I have mentioned the missing class types to the devs, so we will look into making new any new hero classes from these suggestions. (No promises, but I have passed this along.)