[1.12.2] Use resource packs when creating items

[zfms4188]

`#loader contenttweaker
import mods.contenttweaker.CreativeTab;
import mods.contenttweaker.VanillaFactory;
import mods.contenttweaker.Item;
import mods.contenttweaker.ResourceLocation;

VanillaFactory.createCreativeTab("other", item:minecraft:experience_bottle).register();

function cjwp(name as string) {
val item = VanillaFactory.createItem(name) as Item;
item.setCreativeTab(creativetab:other);
var path = ResourceLocation.create("contenttweaker:items/i");
item.textureLocation = path;
item.register();
}

for a in 0 .. 30 {
cjwp("i" ~ a);
}`
It doesn't work properly and textures are missing after entering the game