based upon email from Taras to slurm mailing list

This implements advanced reservation support for burst buffer space.
It does NOT include support for Cray burst buffer generic resources.

What this does is use the core level binding after each task is laid out
to skip all the extra threads in the core so it doesn't give them to
another task.

It probably isn't perfect, but does solve all the scenarios I found.

Fix for GRES scheduling in which there is CPU topology defined or
GRES types defined and there is more than 1 GPU per topology record
in slurmctld. Without this fix, only one GRES could be allocated
from each defined topology.
bug 1369

The slurmctld could abort with a gres configuration having
Type= configured, but no CPU binding configured.

Revert a changed definition used only in the debugging work from commit
ac9436bc

Add support for multiple burst buffer plugins.
Add support for BB GRES.

Some cases were creating the file with modes 0500 and then failing
on the open to write call (specifically after changing the SlurmdUser
from root to some other user for testing).

Make sure correct locks are held when messing with the assoc_mgr cache.

Errors were being recorded on a 32-bit system for printing a 64-bit
gres value with a format of "%lu". This converts all of the print
formats to be %"PRIu64".
Correction to commit 166a4eb8

For advanced reservation, replace flag "License_only" with flag "Any_Nodes".
It can be used to indicate the an advanced reservation resources (licenses
and/or burst buffers) can be used with any compute nodes.

Conflicts:
	src/slurmctld/acct_policy.c

Most of these don't matter as they are all NO_LOCK

Fallout from commit f1ebdef1 when the resources were added.

Requires netloc and hwloc files.
Also requires hwloc v1.11+ (not yet released).

This only adds the field to data structures and does not implement support

Remove GRES spec from burst_buffer.conf
  There is no logic in the generic plugin to support this and the
  cray plugin does not get the information from the config file.
Change allow/deny user separator from colon to comma
Confirm AllowUsers for swap and gres space
Make sure nodes not shared on cray system
Minor changes in several other places