Change in pysim[master]: commands, ts_102_221: replace pytlv with uttlv

[merlinchlosta]

merlinchlosta has posted comments on this change. ( https://gerrit.osmocom.org/c/pysim/+/23483 )

Change subject: commands, ts_102_221: replace pytlv with uttlv
......................................................................


Patch Set 4:

I had a quick look here, especially trying to see if this will work for the SUCI_Calc_Info. What I didn't immediately get:

uttlv allows setting a map identifier<->name:
```
config = {0xa0: {'type': 'bytes', 'name': 'prot_scheme_id_list'},
		0xa1: {'type': 'TLV', 'name': 'hnet_pubkey_list'},
		0x80: {'type': 'bytes', 'name': 'hnet_pubkey_id'},
		0x81: {'type': 'bytes', 'name': 'hnet_pubkey'},}
FIX_TLV.set_tag_map(config)
```
Problem here: the nested TLVs won't be decoded with FIX_TLV but with type 'TLV' (hence, wrong length config).

The other thing: how would I encode an array of TLVs all with the same tag, and is the order preserved?
```
t = FIX_TLV()
t[0x80] = 123
t[0x80] = 321
```
This will of course just override the single 0x80 item.


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Gerrit-Project: pysim
Gerrit-Branch: master
Gerrit-Change-Id: I971b818836aff2fbeb6769f819d496cee4bfa7cf
Gerrit-Change-Number: 23483
Gerrit-PatchSet: 4
Gerrit-Owner: dexter <pmaier at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: daniel <dwillmann at sysmocom.de>
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-Reviewer: merlinchlosta <merlin.chlosta at rub.de>
Gerrit-Comment-Date: Fri, 02 Apr 2021 08:42:51 +0000
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