Core/Spells: Cooldown updates

* Refactored cooldown handling to separate class shared by creatures and players
* Updated and enabled cooldown packets
* Implemented creature school lockouts
* Implemented spell charges
* Fixed AuraUpdate structure
* Fixed aura flag AFLAG_NOCASTER handling
* Implemented spell charge related auras

src/server/scripts/Spells/spell_druid.cpp

@@ -25,6 +25,7 @@
 #include "ScriptMgr.h"
 #include "SpellScript.h"
 #include "SpellAuraEffects.h"
+#include "SpellHistory.h"
 #include "Containers.h"
 
 enum DruidSpells
@@ -122,8 +123,8 @@ class spell_dru_eclipse : public SpellScriptLoader
                 if (!caster)
                     return;
 
-                if (caster->ToPlayer()->GetAuraOfRankedSpell(SPELL_DRUID_NATURES_GRACE))
-                    caster->ToPlayer()->RemoveSpellCooldown(SPELL_DRUID_NATURES_GRACE_TRIGGER, true);
+                if (caster->GetAuraOfRankedSpell(SPELL_DRUID_NATURES_GRACE))
+                    caster->GetSpellHistory()->ResetCooldown(SPELL_DRUID_NATURES_GRACE_TRIGGER, true);
             }
 
             void Register() override