Stacking Regeneration

Stacking Regeneration allows the player to stack regeneration effects from different sources.
In Vanilla potion effects do not stack and you can only override them.  With this mod only regeneration effects from the same source will be overriden. If its an effect from a different source it will instead stack the healing.

At the moment only throwable and drinkable potions have a unique regeneration effect while all other sources will default to the vanilla regeneration effect (and therefore override each other).
This is for balancing reasons though I might add some configs and fancy hud stuff later that would allow different sources to stack.

What the effects currently look like: