Added base interface methods

lib/python/Interface/InterfaceBase.py

+
+class InterfaceBase:
+
+    __meta_data = {}
+
+    def getName(self):
+        """ Returns the name of the object. """
+        return self.__name__
+
+    def getDoc(self):
+        """ Returns the documentation for the object. """
+        return self.__doc__
+
+    def getKey(self, key):
+        """ Returns the value associated with 'key'. """
+        return self.__meta_data[key]
+
+    def getKeys(self):
+        """ Returns a list of all keys. """
+        return self.__meta_data.keys()
+
+    def setKey(self, key, value):
+        """ Associates 'value' with 'key'. """
+        self.__meta_data[key] = value
+
+
+
+
+