uts: Allow for address space randomisation.
Randomise the base addresses of shared objects, non-fixed mappings, the
stack and the heap.  Introduce a service, svc:/system/process-security,
and a tool psecflags(1) to control and observe it

*** 43,52 ****
--- 43,53 ----
  LDLIBS_pmap             = -lproc
  LDLIBS_pmadvise         = -lproc
  LDLIBS_ppriv            = -lproc
  LDLIBS_preap            = -lproc
  LDLIBS_prun             = -lproc
+ LDLIBS_psecflags        = -lproc -lproject
  LDLIBS_psig             = -lproc
  LDLIBS_pstack           = -lproc -lc_db
  LDLIBS_pstop            = -lproc
  LDLIBS_ptime            = -lproc
  LDLIBS_ptree            = -lproc -lcontract