- Add XNAP component to the logging framework in log.h
  - Introduce LEGACY_XNAP log message definitions (INFO, ERROR, WARNING, DEBUG, TRACE)
    in T_messages.txt for tracing and debugging XNAP procedures
  - Update xnap_R16.2.0.cmake formatting for consistency
  - Add missing ASN.1 runtime sources required by XNAP (e.g. asn_codecs_prim_xer.c,
    BIT_STRING_print.c, BIT_STRING_rfill.c, etc.)