Added public files

Roughly added all public files. Probably missed some, though.
diff --git a/doc/materials/materials/MAT_WOODEN_PLANT b/doc/materials/materials/MAT_WOODEN_PLANT
new file mode 100644
index 0000000..0c9c795
--- /dev/null
+++ b/doc/materials/materials/MAT_WOODEN_PLANT
@@ -0,0 +1,22 @@
+Materialid:
+MAT_WOODEN_PLANT         "wooden_plant"
+
+Name:
+"Baum" "Baumes" "Baum" "Baum"
+
+Geschlecht:
+M
+
+Beschreibung:
+Pflanzen mit Holzanteil (Baeume, Gebuesche)
+
+Erkennbarkeit:
+- keine Einschraenkung -
+
+Gruppenzugehoerigkeit:
+MATGROUP_HERBAL:100
+MATGROUP_BIO:100
+MATGROUP_INFLAMMABLE:100
+MATGROUP_SOLID:100
+MATGROUP_WOOD:100
+MATGROUP_LIVING:100