moves basic types to top of declarations added missing prototypes added eb_find_window() added eb_trace_bytes() trace_buffer_state and EB_TRACE_TTY, EB_TRACE_SHELL   for trace buffer management.
moves basic types to top of declarations
added missing prototypes
added eb_find_window()
added eb_trace_bytes() trace_buffer_state and EB_TRACE_TTY, EB_TRACE_SHELL
  for trace buffer management.

dmacvicar/qemacs,dmacvicar/qemacs,dmacvicar/qemacs,dmacvicar/qemacs