Closes #65 - Composition directory structure: Target first?

* changed order to: Arch/Platform/Kernels/Counts/Freq
* makes a lot of sense, easier to find bitstreams for a given target

src/main/scala/tapasco/base/Configuration.scala

@@ -55,11 +55,11 @@ trait Configuration {
    *  _Example_: `arrayinit__counter/020_042/075.0/baseline/pynq`
    */
   def outputDir(composition: Composition, target: Target, freq: Heuristics.Frequency): Path = compositionDir
+    .resolve(target.ad.name)
+    .resolve(target.pd.name)
     .resolve(composition.composition map (_.kernel.replaceAll(" ", "_")) mkString "__")
     .resolve(composition.composition map (ce => "%03d".format(ce.count)) mkString "_")
     .resolve("%05.1f".format(freq))
-    .resolve(target.ad.name)
-    .resolve(target.pd.name)
 
   /** Returns the default output directory for the given core and target. */
   def outputDir(core: Core, target: Target): Path =