[RMMV] Inventory Check

Description:
Check the party inventory for weapons/armors

 Check Types:
 0: All Inventory
 1: Only Equipped
 2: All Inventory EXCEPT equipped

 Script call examples:
 hasWeapon(5, 1) // Will check for weapon 5 on only equipped items
 hasWeapon(5)     // Will check for weapon 5 in all inventory including equipped
 hasArmor(10, 2) // Will check for armor 10 in inventory EXCEPT equipped
 hasItem(4)           // Will check for item 4

 Terms of Use:
   Free to use commercially or non commercially