Added a build target for running the diurnal workload w/MongoDB.
Added a build target for running the diurnal workload w/MongoDB.

yungsters/rain-workload-toolkit,mrcaps/rain-workload-toolkit,mrcaps/rain-workload-toolkit,sguazt/rain-workload-toolkit,mrcaps/rain-workload-toolkit,sguazt/rain-workload-toolkit,sguazt/rain-workload-toolkit,yungsters/rain-workload-toolkit,yungsters/rain-workload-toolkit