Core/Spells: Merge TRIGGERED_IGNORE_AURA_INTERRUPT_FLAGS functionality into TRIGGERED_IGNORE_CAST_IN_PROGRESS as they are always used together (and missing one of them in scripts is a common enough mistake)

Port From (https://github.com/TrinityCore/TrinityCore/commit/ca16d0800c281e87b309c3b695f67c40d5b1d0f8)

Source/Framework/Constants/Spells/SpellConst.cs

@@ -1537,10 +1537,10 @@ namespace Framework.Constants
         IgnoreCastInProgress = 0x20,   //! Will Not Check If A Current Cast Is In Progress
         // reuse = 0x40,   //
         CastDirectly = 0x80,   //! In Spell.Prepare, Will Be Cast Directly Without Setting Containers For Executed Spell
-        IgnoreAuraInterruptFlags = 0x100,   //! Will Ignore Interruptible Aura'S At Cast
+        // reuse = 0x100,   //
         IgnoreSetFacing = 0x200,   //! Will Not Adjust Facing To Target (If Any)
         IgnoreShapeshift = 0x400,   //! Will Ignore Shapeshift Checks
-        // reuse
+        // reuse = 0x800,   //
         DisallowProcEvents = 0x1000,   //! Disallows proc events from triggered spell (default)
         IgnoreCasterMountedOrOnVehicle = 0x2000,   //! Will Ignore Mounted/On Vehicle Restrictions
         // reuse                                        = 0x4000,

Source/Game/Spells/Spell.cs

@@ -2629,7 +2629,7 @@ namespace Game.Spells
                 {
                     // stealth must be removed at cast starting (at show channel bar)
                     // skip triggered spell (item equip spell casting and other not explicit character casts/item uses)
-                    if (!_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.IgnoreAuraInterruptFlags) && !m_spellInfo.HasAttribute(SpellAttr2.NotAnAction))
+                    if (!_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.IgnoreCastInProgress) && !m_spellInfo.HasAttribute(SpellAttr2.NotAnAction))
                         unitCaster.RemoveAurasWithInterruptFlags(SpellAuraInterruptFlags.Action, m_spellInfo);
 
                     // Do not register as current spell when requested to ignore cast in progress
@@ -3044,7 +3044,7 @@ namespace Game.Spells
             if (!hitMask.HasAnyFlag(ProcFlagsHit.Critical))
                 hitMask |= ProcFlagsHit.Normal;
 
-            if (!_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.IgnoreAuraInterruptFlags) && !m_spellInfo.HasAttribute(SpellAttr2.NotAnAction))
+            if (!_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.IgnoreCastInProgress) && !m_spellInfo.HasAttribute(SpellAttr2.NotAnAction))
                 m_originalCaster.RemoveAurasWithInterruptFlags(SpellAuraInterruptFlags.ActionDelayed, m_spellInfo);
 
             if (!m_spellInfo.HasAttribute(SpellAttr3.SuppressCasterProcs))