Added public files

Roughly added all public files. Probably missed some, though.
diff --git a/doc/props/P_AVERAGE_WEIGHT b/doc/props/P_AVERAGE_WEIGHT
new file mode 100644
index 0000000..18557cc
--- /dev/null
+++ b/doc/props/P_AVERAGE_WEIGHT
@@ -0,0 +1,8 @@
+NAME:
+    P_AVERAGE_WEIGHT                "average_weight"
+
+DEFINIERT IN:
+    /sys/player/description.h
+
+BESCHREIBUNG:
+     Durchschnittliche Gewicht eines Wesens dieser Rasse (derzeit nur Player)