add missing bit definition for NG-RAN in xAcT

when encoding the AcT value bit 11 is correctly set
when NG-RAN is present in the string representation,
however the decoding of bit 11 was missing.
Adds tests for the decoder as well.

Change-Id: I910df28c4c59ec94cce9603377786325f6d8c1a3
diff --git a/pysim-testdata/Wavemobile-SIM.ok b/pysim-testdata/Wavemobile-SIM.ok
index 0eb8cc8..d8f1a6f 100644
--- a/pysim-testdata/Wavemobile-SIM.ok
+++ b/pysim-testdata/Wavemobile-SIM.ok
@@ -11,7 +11,7 @@
 Hide in OPLMN: False
 PLMNsel: 00f110ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 PLMNwAcT:
-	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
+	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, NG-RAN, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
 	ffffff0000 # unused
 	ffffff0000 # unused
 	ffffff0000 # unused
@@ -29,7 +29,7 @@
 	ffffff0000 # unused
 
 OPLMNwAcT:
-	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
+	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, NG-RAN, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
 	ffffff0000 # unused
 	ffffff0000 # unused
 	ffffff0000 # unused