Migrate over to using pyosmocom

We're creating a 'pyosmocom' pypi module which contains a number of core
Osmocom libraries / interfaces that are not specific to SIM card stuff
contained here.

The main modules moved in this initial step are pySim.tlv, pySim.utils
and pySim.construct. utils is split, not all of the contents is
unrelated to SIM Cards.  The other two are moved completely.

Change-Id: I4b63e45bcb0c9ba2424dacf85e0222aee735f411

pySim/transport/__init__.py

@@ -8,9 +8,10 @@ import abc
 import argparse
 from typing import Optional, Tuple
 from construct import Construct
+from osmocom.utils import b2h, h2b, i2h, Hexstr
 
 from pySim.exceptions import *
-from pySim.utils import sw_match, b2h, h2b, i2h, Hexstr, SwHexstr, SwMatchstr, ResTuple
+from pySim.utils import SwHexstr, SwMatchstr, ResTuple, sw_match
 from pySim.cat import ProactiveCommand, CommandDetails, DeviceIdentities, Result
 
 #

pySim/transport/calypso.py

@@ -22,10 +22,11 @@ import socket
 import os
 import argparse
 from typing import Optional
+from osmocom.utils import h2b, b2h, Hexstr
 
 from pySim.transport import LinkBase
 from pySim.exceptions import ReaderError, ProtocolError
-from pySim.utils import h2b, b2h, Hexstr, ResTuple
+from pySim.utils import ResTuple
 
 
 class L1CTLMessage:

pySim/transport/modem_atcmd.py

@@ -22,8 +22,9 @@ import re
 import argparse
 from typing import Optional
 import serial
+from osmocom.utils import Hexstr
 
-from pySim.utils import Hexstr, ResTuple
+from pySim.utils import ResTuple
 from pySim.transport import LinkBase
 from pySim.exceptions import ReaderError, ProtocolError
 

pySim/transport/pcsc.py

@@ -27,9 +27,11 @@ from smartcard.Exceptions import NoCardException, CardRequestTimeoutException, C
 from smartcard.System import readers
 from smartcard.ExclusiveConnectCardConnection import ExclusiveConnectCardConnection
 
+from osmocom.utils import h2i, i2h, Hexstr
+
 from pySim.exceptions import NoCardError, ProtocolError, ReaderError
 from pySim.transport import LinkBase
-from pySim.utils import h2i, i2h, Hexstr, ResTuple
+from pySim.utils import ResTuple
 
 
 class PcscSimLink(LinkBase):

pySim/transport/serial.py

@@ -21,10 +21,11 @@ import os
 import argparse
 from typing import Optional
 import serial
+from osmocom.utils import h2b, b2h, Hexstr
 
 from pySim.exceptions import NoCardError, ProtocolError
 from pySim.transport import LinkBase
-from pySim.utils import h2b, b2h, Hexstr, ResTuple
+from pySim.utils import ResTuple
 
 
 class SerialSimLink(LinkBase):