Implemented binary resistances and some more (#18933)

- Fixed possible exploit with tamed pets having template immunities
- Implemented binary resistances
- Corrected resistances calculations
- Pets properly inherit players spell penetration
- Fixed doubled block calculation for damaging melee spells
- Auras removing snare effects will only remove the snaring component
- Shapeshifting will properly remove movement impairing auras only and not crowd control (dragon's breath)
- Immunities are properly checked versus all schools appearing in spell, unit is immune only if immune to all schools
- Spells with melee and magic school mask should compare armor reduction with resistances and select smaller reduction
- Demonic Circle: Teleport no longer removes root effects

(cherrypicked from 93746e8c4a)

src/server/game/Spells/SpellEffects.cpp

@@ -636,14 +636,14 @@ void Spell::EffectTriggerSpell(SpellEffIndex /*effIndex*/)
             // Vanish (not exist)
             case 18461:
             {
-                unitTarget->RemoveMovementImpairingAuras();
+                unitTarget->RemoveMovementImpairingAuras(true);
                 unitTarget->RemoveAurasByType(SPELL_AURA_MOD_STALKED);
                 return;
             }
             // Demonic Empowerment -- succubus
             case 54437:
             {
-                unitTarget->RemoveMovementImpairingAuras();
+                unitTarget->RemoveMovementImpairingAuras(true);
                 unitTarget->RemoveAurasByType(SPELL_AURA_MOD_STALKED);
                 unitTarget->RemoveAurasByType(SPELL_AURA_MOD_STUN);
 
@@ -3179,7 +3179,7 @@ void Spell::EffectScriptEffect(SpellEffIndex effIndex)
                 case 30918: // Improved Sprint
                 {
                     // Removes snares and roots.
-                    unitTarget->RemoveMovementImpairingAuras();
+                    unitTarget->RemoveMovementImpairingAuras(true);
                     break;
                 }
                 // Plant Warmaul Ogre Banner