Setup a python test framework

lib/python/qmk/tests/attrdict.py

@@ -0,0 +1,8 @@
+class AttrDict(dict):
+    """A dictionary that can be accessed by attributes.
+
+    This should only be used to mock objects for unit testing. Please do not use this outside of qmk.tests.
+    """
+    def __init__(self, *args, **kwargs):
+        super(AttrDict, self).__init__(*args, **kwargs)
+        self.__dict__ = self