[Spells] Major update to Bard song pulsing, Bard item clicks while singing, and spell casting restriction logic. (#1954)

* test

* complete

* Update effects.cpp

* Update spells.cpp

* Update effects.cpp

* [Spells] Support for bards using Disciplines while casting or /melody.

Support for spell field 'cast not standing' not allow casting from divine aura

* [Spells] Support for bards using Disciplines while casting or /melody.

DA bypass logic for spells with field 'cast_not_standing'

* updates

* stun and mez bypass

* Update spdat.cpp

* Update spdat.cpp

* Update spells.cpp

* clean

* requirement messages

* update

* pct

* save work

* Reform code 1_22_22

* updated

* update id to pointer

* Update spells.cpp

* rework 2

* update 1_23_22

* Update spells.cpp

* updates

* msg string works

* fix disc timers not be set

* more optimization

* update 1_23_22 PM

moved stop casting out
charm and harmony moved in

* update 1_25_22

rework of functions

* updates 1_26_22

* remove old checks

* gm override added for some

* update bard AA casting checks

* updates

* addbuff exception for bard

* debugs

* charm working

* update

* moved skill check here

* cast from item while singing

* lets not attack mounts

* instant cast items click

* aug clicks working

* aug tests

Bug? Cast time not display on aug clicks for bards

* aug recast from items semi ok

* added item timer function

* unified setting item recast timer

* clean up time

* update

* bard AA cast updates

* debugs removed

* debugs removed

* clean up

* clean up

* better placement of bindsight and numhits fix

* move and rename function

* Update spells.cpp

* add logs

* delete old DoCastingChecks

* Removed old bard pulse functions

* remove AEBardPulse and GroupPulse

* removed Raid::GroupBardPulse

* Pulse Restriction: Divine Aura

* Pulse Restrictions : Fear behavior

* Update spells.cpp

* Update spells.cpp

* [Spells] Major update to Bard song pulsing, Bard item clicks while singing, and spell casting restriction logic.

bots...

* [Spells] Major update to Bard song pulsing, Bard item clicks while singing, and spell casting restriction logic.

added recommended isvalidspell check

* [Spells] Major update to Bard song pulsing, Bard item clicks while singing, and spell casting restriction logic.

merged

* [Spells] Major update to Bard song pulsing, Bard item clicks while singing, and spell casting restriction logic.

removed defines since we have them as constants

zone/aa.cpp

@@ -1311,8 +1311,11 @@ void Client::ActivateAlternateAdvancementAbility(int rank_id, int target_id) {
 		TogglePassiveAlternativeAdvancement(*rank, ability->id);
 	}
 	else {
-		// Bards can cast instant cast AAs while they are casting another song
-		if (spells[rank->spell].cast_time == 0 && GetClass() == BARD && IsBardSong(casting_spell_id)) {
+		// Bards can cast instant cast AAs while they are casting or channeling item cast.
+		if (GetClass() == BARD  && IsCasting() && spells[rank->spell].cast_time == 0) {
+			if (!DoCastingChecksOnCaster(rank->spell)) {
+				return;
+			}
 			if (!SpellFinished(rank->spell, entity_list.GetMob(target_id), EQ::spells::CastingSlot::AltAbility, spells[rank->spell].mana, -1, spells[rank->spell].resist_difficulty, false)) {
 				return;
 			}