Create an intermediate representation.

This way the visualiser does not need to know all about caffe, and can
just work on the intermediate representation which is a lot easier on
the compiler.

src/utils.hpp

@@ -10,6 +10,7 @@
 
 namespace fmri
 {
+	typedef float DType;
 
     template<class T>
     inline T identity(T t) {
@@ -57,4 +58,4 @@ namespace fmri
         return res;
     }
 
-}
+}