TERMINAL PROFILE: device characteristics in list + detail views

- decode.py: _decode_terminal_profile (TS 102 223 §5.2, b1 = LSB per the
  spec tables): class (declared ND/NK at byte 14 b6/b7, strict likely/
  handset rules), generation (positive-only 3G/HSDPA, 4G/E-UTRAN from
  byte 17 — never a 2G claim, real devices under-declare), BIP (byte 12
  b1, byte 13 bearers/channels, byte 17 transports), standards family
  (byte 18 IMEISV/ESN), UI facts (soft keys/screen/markup), era band
- list summary replaces raw hex: e.g. '3G/4G · BIP', 'modem · BIP',
  'no BIP', fallback '<n>-byte profile'
- detail view: tpRows() panel with class/reason, radio bits, BIP,
  standards, UI, profile length
- body row label for TERMINAL PROFILE: 'TLV data' -> 'Profile'
- tests: TERMINAL_PROFILE.md §10 regression anchors + synthetic
  declared-modem/handset vectors
- Bump 1.22.21, SW cache v52->v53

simtrace2_pysniff/__init__.py

@@ -6,7 +6,7 @@ from .gsmtap import GsmtapSender, GsmtapReceiver
 from .pcap import PcapWriter
 from .dump import FileDumper, format_message
 
-__version__ = '1.22.20'
+__version__ = '1.22.21'
 __all__ = [
     'SniffSession',
     'DeviceDisconnected',