Moved Metrics Interfaces to their own package

scopviz/src/main/java/de/tu_darmstadt/informatik/tk/scopviz/metrics/ScopvizGraphMetric.java → scopviz/src/main/java/de/tu_darmstadt/informatik/tk/scopviz/metrics/interfaces/ScopvizGraphMetric.java

@@ -1,4 +1,4 @@
-package de.tu_darmstadt.informatik.tk.scopviz.metrics;
+package de.tu_darmstadt.informatik.tk.scopviz.metrics.interfaces;
 
 import java.util.LinkedList;
 

scopviz/src/main/java/de/tu_darmstadt/informatik/tk/scopviz/metrics/ScopvizGraphOperator.java → scopviz/src/main/java/de/tu_darmstadt/informatik/tk/scopviz/metrics/interfaces/ScopvizGraphOperator.java

@@ -1,4 +1,4 @@
-package de.tu_darmstadt.informatik.tk.scopviz.metrics;
+package de.tu_darmstadt.informatik.tk.scopviz.metrics.interfaces;
 
 import java.util.LinkedList;