Adds factory for Pokemon class

Data/Scripts/012_Overworld/002_Battle triggering/001_Overworld_BattleStarting.rb

@@ -549,7 +549,7 @@ def customTrainerBattle(trainerName, trainerType, party_array, default_level=50,
     if pokemon.is_a?(Pokemon)
       party << pokemon
     elsif pokemon.is_a?(Symbol)
-      party << Pokemon.new(pokemon,default_level,trainer)
+      party << Pokemon.create(pokemon,default_level,trainer)
     end
   }
   trainer.party=party

Data/Scripts/012_Overworld/002_Battle triggering/003_Overworld_WildEncounters.rb

@@ -394,7 +394,7 @@ end
 # Applies wild Pokémon modifiers (wild held item, shiny chance modifiers,
 # Pokérus, gender/nature forcing because of player's lead Pokémon).
 def pbGenerateWildPokemon(species,level,isRoamer=false)
-  genwildpoke = Pokemon.new(species,level)
+  genwildpoke = Pokemon.create(species,level)
   # Give the wild Pokémon a held item
   items = genwildpoke.wildHoldItems
   first_pkmn = $Trainer.first_pokemon

Data/Scripts/012_Overworld/007_Overworld_DayCare.rb

@@ -186,7 +186,7 @@ def pbDayCareGenerateEgg
     end
   end
   # Generate egg
-  egg = Pokemon.new(babyspecies, Settings::EGG_LEVEL)
+  egg = Pokemon.create(babyspecies, Settings::EGG_LEVEL)
   # Randomise personal ID
   pid = rand(65536)
   pid |= (rand(65536)<<16)