ui: print the equipped card's ICCID in the header indicator (v2.5.2)

- new #state-indicator-iccid span between the card image and the ADM badge;
  shows the EF.ICCID digits of the equipped card (hidden without a card
  session or when the ICCID is unreadable, cleared when the server is lost)
- pysimUpdateIccidIndicator() mirrors the ADM badge pattern (no rewrite when
  the value is unchanged); wired into pysimCardStateUpdate() and
  pysimSetServerAvailable()
- indicator/card_state tests for show/hide and markup order;
  SW cache simple-v197

pysim_simple_server/server.py

@@ -24,7 +24,7 @@ from osmocom.construct import GsmOrUcs2Adapter
 from osmocom.tlv import BER_TLV_IE
 
 
-VERSION = '2.5.1'
+VERSION = '2.5.2'
 
 MAX_ENVELOPE_SEGMENTS = 5  # max SMS segments for outgoing C-APDU in ENVELOPE