add RF API and add concept of energy usage to machines + controllers

src/main/java/cofh/api/package-info.java

@@ -0,0 +1,9 @@
+/**
+ * (C) 2014 Team CoFH / CoFH / Cult of the Full Hub
+ * http://www.teamcofh.com
+ */
+@API(apiVersion = CoFHAPIProps.VERSION, owner = "CoFHLib", provides = "CoFHAPI")
+package cofh.api;
+
+import cpw.mods.fml.common.API;
+