ok, it appears we have a working wckey test now in 22.1 and the functions are flushed out. sreport doesn't do the api functions yet though

removed get usage for clusters since we can use the regular get usage, and flushed out the rest of the basic db apis, report apis do not work yet

fix for new format of mysql and also changed sfree and pro/epilog's to use libslurm.o instead of libslurmhelper.la so we don't potentially get bad symbols

Fix for MaxCPUs to honor partitions of 1 node that have more than the maxcpus for a job.  exclusive doesn't work correctly though