Added public files

Roughly added all public files. Probably missed some, though.
diff --git a/doc/props/P_GENDER b/doc/props/P_GENDER
new file mode 100644
index 0000000..93f73dc
--- /dev/null
+++ b/doc/props/P_GENDER
@@ -0,0 +1,9 @@
+NAME:
+    P_GENDER                      "gender"                      
+
+DEFINIERT IN:
+    /sys/thing/language.h
+
+BESCHREIBUNG:
+     Grammatikalisches Geschlecht des Objektes:
+     (Definiert in language.h) MALE, FEMALE oder NEUTER