r10504: - seperate implementation specific stuff, from the generic composite

r10504: - seperate implementation specific stuff, from the generic composite
  stuff.
- don't use SMBCLI_REQUEST_* state's in the genreic composite stuff
- move monitor_fn to libnet.

NOTE: I have maybe found some bugs, in code that is dirrectly in DONE or ERROR
      state in the _send() function. I haven't fixed this bugs in this
      commit! We may need some composite_trigger_*() functions or so.
      And maybe some other generic helper functions...

metze
(This used to be commit 4527815a0a9b96e460f301cb1f0c0b3964c166fc)