Move init_reader() from utils.py to transport/__init__.py

This avoids a circular dependency when introducing type annotations.

Change-Id: I168597ac14497fb188a15cb632f32452128bc1c6
diff --git a/pySim-prog.py b/pySim-prog.py
index 662824c..7b1283b 100755
--- a/pySim-prog.py
+++ b/pySim-prog.py
@@ -34,8 +34,9 @@
 import json
 
 from pySim.commands import SimCardCommands
+from pySim.transport import init_reader
 from pySim.cards import _cards_classes, card_detect
-from pySim.utils import h2b, swap_nibbles, rpad, derive_milenage_opc, calculate_luhn, dec_iccid, init_reader
+from pySim.utils import h2b, swap_nibbles, rpad, derive_milenage_opc, calculate_luhn, dec_iccid
 from pySim.ts_51_011 import EF
 from pySim.card_handler import *
 from pySim.utils import *