Support for Scala dependency detection

tests/samples/codefiles/scala.scala

@@ -0,0 +1,14 @@
+package com.wakatime.test
+
+import com.alpha.SomeClass
+import com.bravo.something.{User, UserPreferences}
+import com.charlie.{Delta => Foxtrot}
+import __root__.golf._
+import com.hotel.india._
+import juliett.kilo
+
+object SimpleObject {
+  def method(arg: String): String = {
+    return "value"
+  }
+}