Allow initial delay

[prog110]

If you have a lot of dependencies, we are almost certain that some dependencies would take atleast a minum amount of time lets say 1m to start. So, it would be better if we allow initial delay before the checks are even attempted

i.e add a new flag initial-delay that would be used to delay the checks on start

[JerrinThomas]

What @thekalinga has suggested is a valid point. Is there any update on this? is it possible to add an initial delay. in my case, the services have started to check for the availability initially and timeouts easily. @jwilder