Script fixes and new effects.

Cleaned up unneeded requires in some scripts
Fixed Second Wind
Added new effect scripts
Added bard song scripts that mostly work

data/scripts/effects/covered.lua

@@ -0,0 +1,15 @@
+require("battleUtils")
+
+--If person who cast cover is within 8y, change the action's target to them
+--Not sure what attacks are valid. It only says "melee attacks", unsure if that includes weaponskills and abilities or just auto attacks
+--Right now this will probably be really buggy, since Covered is not necessarily the first effect that will activate on the target
+
+--Really need to do more research on this, figure out how it interacts with multi-hit attacks, aoe attacks (if those count as melee ever?), etc.
+--If it redirects the whole attack instead of a single hit, we might need a new that activates while iterating over targets.
+function onPreAction(effect, caster, target, skill, action, actionContainer)
+    if not skill.isRanged then
+        if effect.GetSource().IsAlive() and getDistanceBetweenActors(effect.GetSource(), target) <= 8 then
+            target = effect.GetSource();
+        end
+    end
+end;