Insert partitionable slot option for multi-core jobs

Test partitionable slots again with RAL defrag configuration to allow
dynamic allocation of slots between single and multi-core.

Changes:
	modified:   modules/condor/manifests/client.pp
	new file:   modules/condor/templates/condor_config.local.mcore.erb
	modified:   modules/gce_node/manifests/atlas.pp
	modified:   modules/gce_node/manifests/belle.pp