add a test to make sure machines are not running while still starting
in order to do this, I added a parameter to `run()` to delineate whether
or not the command should block or not. The non blocking run allows for tests
to get and use the `machineSession` pointer and check the exit code to see if it has finished.
also fix a bug (created by #13996) that before started, the machines would
always say "LastUp" and "Created" Less than one second ago
Signed-off-by: cdoern <cbdoer23@g.holycross.edu>
c721acf082