Add ExecutionOptionsManager

Taken from https://github.com/ucb-bar/firrtl

project/build.properties

@@ -0,0 +1 @@
+sbt.version=0.13.12

project/dependencies.scala

@@ -0,0 +1,16 @@
+import sbt._
+import Keys._
+
+object Dependencies {
+  val scalatestVersion = "3.0.0"
+  val scalatest = "org.scalatest" %% "scalatest" % scalatestVersion % "test"
+  val scoptVersion = "3.4.0"
+  val scopt =  "com.github.scopt" %% "scopt" % scoptVersion
+
+  val commonDependencies: Seq[ModuleID] = Seq(
+		scalatest
+  )
+  val executionoptionsDependencies: Seq[ModuleID] = Seq(
+    scopt
+  )
+}