Add optional 'name' argument to create and create_key_pair functions

The ProxyKmipClient now allows you to optionally provide a name
when performing a `Create` or a `Create Key Pair`. If not specified,
the name is excluded from the request.

 * For `create`, users specify `name`
 * For `create_key_pair`, users specify `private_name` and `public_name`

Resolves #208

kmip/core/attributes.py

@@ -154,6 +154,9 @@ class Name(Struct):
 
     @classmethod
     def create(cls, name_value, name_type):
+        '''
+            Returns a Name object, populated with the given value and type
+        '''
         if isinstance(name_value, Name.NameValue):
             value = name_value
         elif isinstance(name_value, str):
@@ -200,6 +203,9 @@ class Name(Struct):
         else:
             return NotImplemented
 
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
 
 # 3.3
 class ObjectType(Enumeration):