[Spells] Invisibility updates and rework (#1991)

* updates pre merge

* update

* Update spell_effects.cpp

* Update mob.h

* test

* test

* updates

* updates

* save

* update

* working solid

* animal and undead start

* progress

* updates

* rename

* set invis appearance on bonus

* remove fade buff state check

* update IsViisble check

* optimizing

* don't break bots

* debug remover

* Update ruletypes.h

* perl adds

* Update client_packet.cpp

* update

* done

* remove debugs

* Update client_packet.cpp

* update

* [Spells] Invisibility updates and rework

lua support

* [Spells] Invisibility updates and rework

lua

common/ruletypes.h

@@ -404,7 +404,7 @@ RULE_BOOL(Spells, July242002PetResists, true, "Enable Pets using PCs resist chan
 RULE_INT(Spells, AOEMaxTargets, 0, "Max number of targets a Targeted AOE spell can cast on. Set to 0 for no limit.")
 RULE_BOOL(Spells, CazicTouchTargetsPetOwner, true, "If True, causes Cazic Touch to swap targets from pet to pet owner if a pet is tanking.")
 RULE_BOOL(Spells, PreventFactionWarOnCharmBreak, false, "Enable spell interupts and dot removal on charm break to prevent faction wars.")
-RULE_BOOL(Spells, AllowDoubleInvis, false, "Allows you to cast invisibility spells on a player that is already invisible")
+RULE_BOOL(Spells, AllowDoubleInvis, true, "Allows you to cast invisibility spells on a player that is already invisible, live like behavior.")
 RULE_BOOL(Spells, AllowSpellMemorizeFromItem, false, "Allows players to memorize spells by right-clicking spell scrolls")
 RULE_BOOL(Spells, InvisRequiresGroup, false, "Invis requires the the target to be in group.")
 RULE_INT(Spells, ClericInnateHealFocus, 5, "Clerics on live get a 5 pct innate heal focus")