Changes

+ rtems-bsd-prot.c 
  - add include of rtems/freebsd/sys/refcount.h
  - add crextend()
  - add crsetgroups_locked()
  - add crsetgroups()
    - required addition

+ Added rtems-bsd-rmlock.c stub

+ Moved all RTEMS specific code under rtemsbsd preserving directory structure.

+ freebsd-to-rtems.py in this tree for VCS control
  - Added argument for destination directory
  - Support config.inc
  - Fix for loop line too long on install stanza

+ kern_subr.c
  - had to add #include <sys/uio.h>

+ RTEMS does not have 
  - any thread td_ structure elements
  - sys/mutex.h - stubbed thread_lock and friends

+ Include Files to ifdef include out
    #include <sys/vnode.h>
    #include <vm/vm.h>
    #include <vm/vm_extern.h>
    #include <vm/vm_kern.h>
    #include <vm/vm_page.h>