Added public files

Roughly added all public files. Probably missed some, though.
diff --git a/doc/props/P_AGE b/doc/props/P_AGE
new file mode 100644
index 0000000..ad6388a
--- /dev/null
+++ b/doc/props/P_AGE
@@ -0,0 +1,8 @@
+NAME:
+    P_AGE                         "age"                         
+
+DEFINIERT IN:
+    /sys/living/life.h
+
+BESCHREIBUNG:
+     Alter des Spielers in Heart-Beats (1 HB == 2 Sekunden)