samedec-0.3.0: Add fallback decoding

ENHANCEMENTS

* CLI-BREAKING: Suppress duplicate messages which follow
  each other quickly in time. This mainly affects Fast EOMs:
  now only one "`NNNN`" line will be printed per SAME
  message. Some users may consider this breaking.

* CLI: Add fallback decoding which can decode SAME headers using
  only two bursts. The improved decoder adds a delay of
  **1.311 seconds** when reporting a Start Of Message. Since the
  SAME voice message is often prefixed with an extended period of
  silence and/or a Warning Alarm Tone, the additional delay
  should not impact most applications.

FIXES

* Fix decoding of back-to-back SAME messages when either or both
  have missed bursts

* Update dependencies