Changes

pySim-shell_test: add new testcase for card initialization

The card initialization normally takes place automatically. Nearly all
testcases implicitly cover this code-path. However, it is also possible
to skip the card initialization and do it at some later point. This is
commonly the case for unprovisioned card that require some custom APDUs
in a basic initialization step. When this step is done one would use
the "equip" command to level up to the full featured mode. This patch
adds a testcase for this scenario

Related: OS#6367
Change-Id: I01a03fa07d8c62164453bd707c5943288ff1a972