Adding support for Scala 2.13

Mostly import changes
Some formatting changes
Runs +test

src/test/scala/barstools/macros/CostFunction.scala

@@ -1,6 +1,7 @@
 package barstools.macros
 
-import mdf.macrolib._
+import mdf.macrolib.SRAMMacro
+
 
 /** Tests to check that the cost function mechanism is working properly. */