Show warning when no host has been matched while install

[shyim]

Use Case

When a bolt plan run is executed and no hosts are found or not matching, bolt should show a warning instead of just:

❯ bolt plan run apache::install -t all
Starting: plan apache::install
Finished: plan apache::install in 0.01 sec
Plan completed successfully with no result

Which looks pretty for a successful execution. But nothing happen as my inventory.yaml was empty.

Describe the Solution You Would Like

When a plan is executed and no host has been matched, show a warning to the user.

Additional Context

Just started new with Bolt, I like verbose warnings/errors what I am doing wrong without looking into a lot of docs.