pySim-shell: add new commandline option "--skip-card-init"

by default pySim-shell does all kinds of probing and file selection
on startup. This is to determine the card type and to find a suitable
card profile. However, in case the card is non yet provisioned this
probing may cause a error messages and even might upset the cards
internal state. So let's have a commandline option thrugh which we
can instruct pySim-shell to skip any initialization and to give us
a prompt immediately, so that we can enter custom APDUs

Related: OS#6367
Change-Id: I1d8a57de201fe7ad7cbcbc6f72969ea8521e821d

pySim-shell.py

@@ -1060,6 +1060,8 @@ global_group.add_argument("--card_handler", dest="card_handler_config", metavar=
                           help="Use automatic card handling machine")
 global_group.add_argument("--noprompt", help="Run in non interactive mode",
                           action='store_true', default=False)
+global_group.add_argument("--skip-card-init", help="Skip all card/profile initialization",
+                          action='store_true', default=False)
 
 adm_group = global_group.add_mutually_exclusive_group()
 adm_group.add_argument('-a', '--pin-adm', metavar='PIN_ADM1', dest='pin_adm', default=None,
@@ -1105,7 +1107,7 @@ if __name__ == '__main__':
     # is no card in the reader or the card is unresponsive. PysimApp is
     # able to tolerate and recover from that.
     try:
-        rs, card = init_card(sl)
+        rs, card = init_card(sl, opts.skip_card_init)
         app = PysimApp(card, rs, sl, ch)
     except:
         startup_errors = True