message: Revise defs.sh
  Add missing subdirectories
diff: export FPRIME_ROOT=..
  export SUBDIRS="
  +ActiveLogger
  ActiveRateGroup
  ActiveTextLogger
  +AssertFatalAdapter
  +BufferLogger
  +BufferManager
  +CmdDispatcher
  +CmdSequencer
  +ComLogger
  ComSplitter
  Cycle
  Deframer
  Fatal
  FatalHandler
  FileDownlink
  +FileManager
  +FileUplink
  Framer
  +GenericHub
  +GenericRepeater
  +GroundInterface
  +Health
  LinuxTimer
  +PassiveConsoleTextLogger
  Ping
  PolyDb
  PolyIf
  +PrmDb
  +RateGroupDriver
  Sched
  Seq
  +StaticMemory
  Time
  TlmChan
  WatchDog
  