move playerskins out of the subgame

mods/playerskins/depends.txt

-default
-character_creator?
-3d_armor?

mods/playerskins/init.lua

--- thanks for the support from tenplus1, kaeza and Shara <3
--- 
--- this is a kind of pre-version of the Illuna skinmod.
--- it is supposed to work together with a skinserver later.
--- since it is very basic and the base kindly rewritten by tenplus1,
--- i didn't yet decide about any license and so on.
-
--- get mod textures path
-local path = minetest.get_modpath("playerskins") .. "/textures/"
- 
--- this function runs every time player joins game
-minetest.register_on_joinplayer(function(player)
- 
-    -- get player name from player object
-    local name = player:get_player_name()
-
-    -- make name lower case and add .png extension
-    name = name:lower() .. ".png"
- 
-    -- set skin to default
-    local skin = "character.png"
- 
-    -- check if texture exists and set new skin
-    local f = io.open(path .. name, "r")
-    if f then
-        skin = name -- set new skin name
-        f:close() -- close file
-
-        -- apply player texture
-        minetest.after(1, function()
-            if minetest.get_modpath("3d_armor") then
-                -- FIXME: after function is a placeholder to validate function
-                minetest.after(0, function(player)
-                    if not player then
-                        return
-                    end
-                    local name = player:get_player_name()
-                    armor.textures[player:get_player_name()].skin = skin
-                    armor:set_player_armor(player)
-                end, player)
-               else
-                player:set_properties({
-                textures = {skin},
-            })
-        end
-    end)
-    end
-end)