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"
+  }
+}

tests/test_dependencies.py

@@ -420,3 +420,18 @@ class DependenciesTestCase(TestCase):
             expected_lines=18,
             entity='objective-c.m',
         )
+
+    def test_scala_dependencies_detected(self):
+        self.shared(
+            expected_dependencies=[
+                'com.alpha.SomeClass',
+                'com.bravo.something',
+                'com.charlie',
+                'golf',
+                'com.hotel.india',
+                'juliett.kilo',
+            ],
+            expected_language='Scala',
+            expected_lines=14,
+            entity='scala.scala',
+        )