Enable parsing of ISIM Service table (IST)

As per TS 31.103, This EF indicates which ISIM services are available.
If a service is not indicated as available in the ISIM, the ME shall not select this service.

Parsing of IST is achieved by first selecting the ISIM application using its AID.
This is followed by selecting EF.IST with File ID - 6f07 in ADF.ISIM

Change-Id: I3f0a7227360b72a707dc1bcc4cc9c8a4ec7ad2b2
diff --git a/pysim-testdata/sysmoISIM-SJA2.ok b/pysim-testdata/sysmoISIM-SJA2.ok
index 80045cf..afc4491 100644
--- a/pysim-testdata/sysmoISIM-SJA2.ok
+++ b/pysim-testdata/sysmoISIM-SJA2.ok
@@ -150,5 +150,11 @@
 	Service 94 - Extended Terminal Applications
 	Service 95 - Support of UICC access to IMS
 
+ISIM Service Table: 190200
+	Service 1 - P-CSCF address
+	Service 4 - GBA-based Local Key Establishment Mechanism
+	Service 5 - Support of P-CSCF discovery for IMS Local Break Out
+	Service 10 - Support of UICC access to IMS
+
 Done !