TST: setup database on a per-module basis
TST: setup database on a per-module basis

Test suite runs in 1.3 seconds with database setup for every function
and 0.6 seconds with database setup on a per module basis

tacaswell/metadataStore,NSLS-II/metadatastore,NSLS-II/metadatastore,hhslepicka/metadatastore,ericdill/databroker,ericdill/databroker,arkilic/metadatastore,tacaswell/metadataStore,arkilic/metadatastore,hhslepicka/metadatastore