Adding gather map class

Author: eiglesias34

rdfizer/rdfizer/triples_map/TriplesMap.py

@@ -177,4 +177,13 @@ def __init__(self, func_map_id, func_name, parameters):
 
 		self.func_map_id = func_map_id
 		self.name = func_name
-		self.parameters = parameters
+		self.parameters = parameters
+
+class GatherMap:
+
+	def __init__(self, gather_id, value, type, gather_list):
+
+		self.gather_id = gather_id
+		self.value = value
+		self.type = type
+		self.gather_list = gather_list