Extend parsing and printing of Service table to ISIM

Change-Id: I7657432df76e9de5e4e5fdecfd717d8363de8270
diff --git a/pySim/utils.py b/pySim/utils.py
index 56f9706..1980685 100644
--- a/pySim/utils.py
+++ b/pySim/utils.py
@@ -331,7 +331,10 @@
 	Parses the EF S/U/IST and prints the list of available services in EF S/U/IST
 	"""
 
-	if table == "usim":
+	if table == "isim":
+		from pySim.ts_31_103 import EF_IST_map
+		lookup_map = EF_IST_map
+	elif table == "usim":
 		from pySim.ts_31_102 import EF_UST_map
 		lookup_map = EF_UST_map
 	else: