Initial stubs and basic Engine implementation

lib/Emitter.cpp

@@ -0,0 +1,11 @@
+#include "amuse/Emitter.hpp"
+
+namespace amuse
+{
+
+Emitter::Emitter(Engine& engine, int groupId, Voice& vox)
+: Entity(engine, groupId), m_vox(vox)
+{
+}
+
+}