feat(Core/Spell): Implement ValidateSpellInfo (#4323)

* feat(Core/Spell): Implement ValidateSpellInfo

* cherry-pick from 2b5d7eef3a & a0a158b5b8

* sLog->outError

* cleanup

* convert to ValidateSpellInfo

* fix error log

* improve sLog->outError

* remove non related spells stuff from Validate

* remove the last

* build

* build x2

src/server/scripts/EasternKingdoms/zone_undercity.cpp

@@ -2236,9 +2236,7 @@ public:
 
         bool Validate(SpellInfo const* /*spellInfo*/) override
         {
-            if (!sSpellMgr->GetSpellInfo(SPELL_INGEST))
-                return false;
-            return true;
+            return ValidateSpellInfo({ SPELL_INGEST });
         }
 
         void HandleScript(SpellEffIndex /*effIndex*/)