cards: Define ISIM Card class

This commit introduces a ISIM generic Card class which can hold
parameters/functions specific to ISIM application on UICC

Change-Id: I242e679ff2f8831175e76d2fcc5fb285d28bd890

pySim/cards.py

@@ -309,6 +309,10 @@ class UsimCard(Card):
 			(res, sw) = self._scc.update_binary(EF_USIM_ADF_map['UST'], content)
 		return sw
 
+class IsimCard(Card):
+	def __init__(self, ssc):
+		super(IsimCard, self).__init__(ssc)
+
 
 class _MagicSimBase(Card):
 	"""