Material: Add a very basic wood appearance card

The existing "Wood-Generic" material was only rendered in the default
gray, which is now fixed. I'm aware that wood comes in may different
shades, and the current choice of a yellowish brown is arbitrary.

src/Mod/Material/CMakeLists.txt

@@ -175,6 +175,7 @@ SET(AppearanceLib_Files
     Resources/Materials/Appearance/Silver.FCMat
     Resources/Materials/Appearance/Steel.FCMat
     Resources/Materials/Appearance/Stone.FCMat
+    Resources/Materials/Appearance/Wood.FCMat
 )
 
 SET(PatternLib_Files

src/Mod/Material/Resources/Materials/Appearance/Wood.FCMat

@@ -0,0 +1,16 @@
+---
+General:
+  UUID: "1850ac4a-0df2-43cd-9934-e59e95b9526f"
+  Author: "Jonas Bähr"
+  License: "CC-BY-3.0"
+  Name: "Wood"
+  Description: "Defines generic Wood appearance properties"
+AppearanceModels:
+  BasicRendering:
+    UUID: 'f006c7e4-35b7-43d5-bbf9-c5d572309e6e'
+    AmbientColor: "(0.375, 0.1875, 0.0000, 1.0)"
+    DiffuseColor: "(0.8984, 0.7305, 0.3906, 1.0)"
+    EmissiveColor: "(0.0000, 0.0000, 0.0000, 1.0)"
+    Shininess: "0.9500"
+    SpecularColor: "(0.7461, 0.3750, 0.0000, 1.0)"
+    Transparency: "0.0"

src/Mod/Material/Resources/Materials/Standard/Wood/Wood-Generic.FCMat

@@ -6,6 +6,9 @@ General:
   License: "CC-BY-3.0"
   Name: "Wood"
   Description: "A standard construction wood"
+Inherits:
+  Wood:
+    UUID: "1850ac4a-0df2-43cd-9934-e59e95b9526f"
 Models:
   Father:
     UUID: '9cdda8b6-b606-4778-8f13-3934d8668e67'