- add ceedling/cmock/unity as testing framework and support

- unified makefile project for the whole repos
- new separate project for tests

tests/vendor/ceedling/lib/rake_utils.rb

@@ -0,0 +1,17 @@
+
+class RakeUtils
+  
+  constructor :rake_wrapper
+
+  def task_invoked?(task_regex)
+    task_invoked = false
+    @rake_wrapper.task_list.each do |task|
+      if ((task.already_invoked) and (task.to_s =~ task_regex))
+        task_invoked = true
+        break
+      end
+    end
+    return task_invoked
+  end
+
+end