Walk Mode and Precise Movement Mode Are Now Toggles

A player's creature roar now plays at max volume for that player.

Walk mode is now a toggle, toggle walk mode on/off by pressing the "Caps-Lock" key.

Precise movement mode is now a toggle, toggle precise movement mode on/off by pressing the "Left Control" key.

(Multiplayer) When a plant respawns it can now show its overhead healthbar again when those are toggled on.