Added player_api

mods/player_api/README.txt

@@ -0,0 +1,27 @@
+Minetest Game mod: player_api
+=============================
+See license.txt for license information.
+
+Provides an API to allow multiple mods to set player models and textures.
+Also sets the default model, texture, and player flags.
+This mod is only for content related to the Player API and the player object.
+
+Authors of source code
+----------------------
+Originally by celeron55, Perttu Ahola <celeron55@gmail.com> (LGPLv2.1+)
+Various Minetest developers and contributors (LGPLv2.1+)
+
+Authors of media (textures, models and sounds)
+----------------------------------------------
+Original model by MirceaKitsune (CC BY-SA 3.0).
+Various alterations and fixes by kilbith, sofar, xunto, Rogier-5, TeTpaAka, Desour,
+stujones11, An0n3m0us (CC BY-SA 3.0):
+  character.b3d
+  character.blend
+
+Jordach (CC BY-SA 3.0):
+  character.png
+
+celeron55, Perttu Ahola <celeron55@gmail.com> (CC BY-SA 3.0):
+  player.png
+  player_back.png