Build Assimp from source

thirdparty/assimp/test/models/Q3D/E-AT-AT.source.txt

@@ -0,0 +1,8 @@
+Source: the3darchive.com
+
+Downloaded 4th November 08 (Obama ftw!)
+
+Copyright notice found on the page:
+
+Where do the models in the archive come from?
+All 3D files available from the3darchive.com are from the public domain. 

thirdparty/assimp/test/models/Q3D/earth.source.txt

@@ -0,0 +1,8 @@
+Source: the3darchive.com
+
+Downloaded 4th November 08 (Obama ftw!)
+
+Copyright notice found on the page:
+
+Where do the models in the archive come from?
+All 3D files available from the3darchive.com are from the public domain.