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 93746e8c4a79c8256cd4896533315683f143508c)

src/server/scripts/Spells/spell_priest.cpp

@@ -1055,7 +1055,7 @@ class spell_pri_phantasm : public SpellScriptLoader
             void HandleEffectProc(AuraEffect const* /*aurEff*/, ProcEventInfo& /*eventInfo*/)
             {
                 PreventDefaultAction();
-                GetTarget()->RemoveMovementImpairingAuras();
+                GetTarget()->RemoveMovementImpairingAuras(true);
             }
 
             void Register() override