Moved data types to its own package and added empty synth package

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

packages/wolf_3d_synth/lib/src/wolf_3d_synth_base.dart

@@ -0,0 +1,6 @@
+// TODO: Put public facing types in this file.
+
+/// Checks if you are awesome. Spoiler: you are.
+class Awesome {
+  bool get isAwesome => true;
+}