Add new billing TRES

NEWS

RELEASE_NOTES

doc/html/tres.shtml

doc/man/man1/sacctmgr.1

doc/man/man1/sreport.1

doc/man/man5/slurm.conf.5

slurm/slurm.h.in

src/common/assoc_mgr.c

src/common/read_config.h

src/common/slurm_protocol_defs.c

src/common/slurmdb_defs.h

...ugins/accounting_storage/mysql/accounting_storage_mysql.c

src/plugins/priority/multifactor/priority_multifactor.c

src/plugins/sched/backfill/backfill.c

src/slurmctld/acct_policy.c

src/slurmctld/acct_policy.h

src/slurmctld/controller.c

src/slurmctld/job_mgr.c

src/slurmctld/job_scheduler.c

src/slurmctld/node_scheduler.c