[S] Change in pysim[master]: pySim-shell: print cardinfo hexstrings in lowercase

Attention is currently required from: dexter.

laforge has posted comments on this change by dexter. ( https://gerrit.osmocom.org/c/pysim/+/38001?usp=email )

Change subject: pySim-shell: print cardinfo hexstrings in lowercase ......................................................................

Patch Set 2:

(1 comment)

Patchset:

PS2: this smells a bit like: * we should make sure to never assign upper case strings to the 'identity' dict in the first place * we should possibly make hex-strings a first-class citizen, i.e. have a `class hexstr(str)` which then has a `def str(self)` that performs the lower-case conversion. This way every time somebody prints a hexstr, it should be implicitly converted to lowercase.