First show_level xp handler

ROADMAP

@@ -2,7 +2,7 @@
 
 * v1.0.0
 ** v0.1.0
-*** v0.0.1
+*** v0.0.3
 **** This kind of dashboard is smart
 https://grafana.qbuissondebon.info/dashboard/db/minetestforfun-external-monitoring
 - Could we have one ?
@@ -224,13 +224,16 @@ It's really fast. May be used on a website, to show the actual map.
 [mg_villages] ERROR: Did not find a suitable replacement for cottages:barrel (suggested but inexistant: cottages:barrel). Building: chateau_without_garden.
 **** Try mumble-link
 - see https://github.com/chipgw/minetest-mumble-wrapper
+*** v0.0.2
 **** [feature_showLevel] Our own mod
+     CLOCK: [2018-12-30 dim. 18:06]
      *xpro doesn't show total level ? Maybe write a show_level mod ?*
-- [ ] First create our own mod/nint.lua
+- [X] First create our own mod/nint.lua with depends description etc...
 - [ ] Must get xpro mod and register two handler
   - [ ] one for add XP
   - [ ] One for remove
 - [ ] Find a way to permanently print the player's level
+- [ ] Maybe using HUD monitor mod : https://forum.minetest.net/viewtopic.php?f=9&t=13795&p=202584
 **** DONE Try an XP+levels mod
      CLOCK: [2018-12-29 sam. 15:55]--[2018-12-29 sam. 16:17] =>  0:22
   *level 2 : not showing it! but a cool annoucement with novice etc...*

mods/show_level/depends.txt

@@ -0,0 +1 @@
+xpro

mods/show_level/depscription.txt

@@ -0,0 +1 @@
+Permanently shows the global player's level from xpro.

mods/show_level/init.lua

@@ -0,0 +1,7 @@
+-- Permanently shows the player's level
+
+
+xpro.register_on_add_xp(function(name, xp_added, lvl_changed)
+      minetest.log("error", "[show_level] Updating level")
+      
+end)

mods/show_level/mod.conf

@@ -0,0 +1 @@
+name = show_level