Refactor StatusEffectContainer to better handle messages using

CommandResultContainer.

Alter Modifiers to be the same as ParamNames.

Add LoseOnClassChange flag for status effects.

Add a few missing status effects.

Fix EndTime for stance status effects to stop icon from blinking.

data/scripts/effects/hp_penalty.lua

@@ -0,0 +1,11 @@
+require("modifiers")
+
+function onGain(target, effect)
+    local newMaxHP = target.GetMaxHP() * 0.75;
+
+    target.SetMaxHP(newMaxHP);
+end;
+
+function onLose(target, effect)
+    target.SetMaxHP(target.GetMaxHP() / 0.75);
+end;