commands: Add report command
commands: Add report command

report provides a summary of a run and an optional list of all
jobs in the run, with any events that might have occurred during each
job and their current status.

report allows an output directory to be specified or will attempt to
discover possible output directories within the current directory.

ARM-software/workload-automation,ARM-software/workload-automation,setrofim/workload-automation,setrofim/workload-automation,ARM-software/workload-automation,setrofim/workload-automation,ARM-software/workload-automation,setrofim/workload-automation