Corrected Shell of Resistance equip restriction (#3829)

* Fixes #3820.
* Should be equippable by all classes.
* Added missing VIP bonus.
* Simplified elemental resistance bonus.
Thanks to @Everade and @Atemo!

db/pre-re/item_db.txt

@@ -1100,7 +1100,7 @@
 2129,Exorcism_Bible,Exorcism Bible,4,20,,600,,5,,0,0x00008100,7,2,32,,50,1,5,{ bonus bHPrecovRate,3; bonus bSPrecovRate,3; bonus bInt,1; },{},{}
 2130,Cross_Shield,Cross Shield,4,20,,2000,,6,,1,0x00004000,7,2,32,,80,1,4,{ bonus bStr,1; bonus2 bSkillAtk,"PA_SHIELDCHAIN",30; bonus2 bSkillAtk,"CR_SHIELDBOOMERANG",30; bonus bUseSPrate,10; },{},{}
 2131,Magic_Study_Vol1,Magic Bible Vol1,4,20,,1000,,2,,1,0x00810204,2,2,32,,70,1,5,{ bonus bMdef,3; bonus bInt,2; bonus2 bAddEffWhenHit,Eff_Stun,1000; },{},{}
-2132,Shelter_Resistance,Shell Of Resistance,4,20,,0,,9,,0,0xFFFFFFFF,2,2,32,,0,0,2,{ bonus2 bSubEle,Ele_Neutral,20; bonus2 bSubEle,Ele_Water,20; bonus2 bSubEle,Ele_Earth,20; bonus2 bSubEle,Ele_Fire,20; bonus2 bSubEle,Ele_Wind,20; bonus2 bSubEle,Ele_Poison,20; bonus2 bSubEle,Ele_Holy,20; bonus2 bSubEle,Ele_Dark,20; bonus2 bSubEle,Ele_Ghost,20; bonus2 bSubEle,Ele_Undead,20; bonus bShortWeaponDamageReturn,1; },{},{}
+2132,Shelter_Resistance,Shell Of Resistance,4,20,,0,,9,,0,0xFFFFFFFF,7,2,32,,0,0,2,{ bonus2 bSubEle,Ele_All,20; bonus bShortWeaponDamageReturn,1; if (vip_status(VIP_STATUS_ACTIVE)) { bonus bAllStats,1; } },{},{}
 2133,Tournament_Shield,Tournament Shield,4,20,,1000,,5,,1,0x00004082,2,2,32,,50,1,4,{ bonus2 bAddClass,Class_All,1; if( Class==Job_Lord_Knight ) bonus bAspdRate,-5; },{},{}
 2134,Shield_Of_Naga,Shield of Naga,4,20,,500,,3,,1,0x00CFFF80,2,2,32,,70,1,2,{ bonus bMdef,3; autobonus2 "{ bonus bShortWeaponDamageReturn,(getrefine()*3); }",10,5000,BF_WEAPON,"{ specialeffect2 EF_GUARD; }"; },{},{}
 2135,Shadow_Guard,Shadow Guard,4,20,,800,,4,,1,0x00020000,2,2,32,,70,1,2,{},{},{}

db/re/item_db.txt

@@ -1342,7 +1342,7 @@
 2129,Exorcism_Bible,Exorcism Bible,4,20,,600,,80,,0,0x00008100,63,2,32,,50,1,5,{ bonus bHPrecovRate,3; bonus bSPrecovRate,3; bonus bInt,1; },{},{}
 2130,Cross_Shield,Cross Shield,4,20,,2000,,130,,1,0x00004000,63,2,32,,80,1,4,{ bonus bStr,1; bonus2 bSkillAtk,"PA_SHIELDCHAIN",30; bonus2 bSkillAtk,"CR_SHIELDBOOMERANG",30; bonus bUseSPrate,10; },{},{}
 2131,Magic_Study_Vol1,Magic Bible Vol1,4,20,,1000,,18,,1,0x00810204,18,2,32,,70,1,5,{ bonus bMdef,3; bonus bInt,2; bonus2 bAddEffWhenHit,Eff_Stun,1000; },{},{}
-2132,Shelter_Resistance,Shell Of Resistance,4,20,,0,,9,,0,0xFFFFFFFF,18,2,32,,0,0,2,{ bonus2 bSubEle,Ele_Neutral,20; bonus2 bSubEle,Ele_Water,20; bonus2 bSubEle,Ele_Earth,20; bonus2 bSubEle,Ele_Fire,20; bonus2 bSubEle,Ele_Wind,20; bonus2 bSubEle,Ele_Poison,20; bonus2 bSubEle,Ele_Holy,20; bonus2 bSubEle,Ele_Dark,20; bonus2 bSubEle,Ele_Ghost,20; bonus2 bSubEle,Ele_Undead,20; bonus bShortWeaponDamageReturn,1; },{},{}
+2132,Shelter_Resistance,Shell Of Resistance,4,20,,0,,9,,0,0xFFFFFFFF,63,2,32,,0,0,2,{ bonus2 bSubEle,Ele_All,20; bonus bShortWeaponDamageReturn,1; if (vip_status(VIP_STATUS_ACTIVE)) { bonus bAllStats,1; } },{},{}
 2133,Tournament_Shield,Tournament Shield,4,20,,1000,,105,,1,0x00004082,18,2,32,,50,1,4,{ bonus2 bAddClass,Class_All,1; if( Class == Job_Lord_Knight ) bonus bAspdRate,-5; },{},{}
 2134,Shield_Of_Naga,Shield of Naga,4,20,,500,,35,,1,0x00CFFF80,18,2,32,,70,1,2,{ .@r = getrefine(); bonus bMdef,3; if(.@r<11) { autobonus2 "{ bonus bShortWeaponDamageReturn,(.@r*3); }",10,5000,BF_WEAPON,"{ specialeffect2 EF_GUARD; }"; } else { autobonus2 "{ bonus bShortWeaponDamageReturn,(.@r*3); }",10,5000+(.@r/2*1000),BF_WEAPON,"{ specialeffect2 EF_GUARD; }"; } },{},{}
 2135,Shadow_Guard,Shadow Guard,4,20,,800,,52,,1,0x00020000,18,2,32,,70,1,2,{},{},{}