Add an option to run mvnd

[fbricon]

Is your feature request related to a problem? Please describe.
mvnd is a Maven daemon, similar to the Gradle daemon. It basically allows running Maven commands in a warmed-up JVM, so the JVM start-up cost is eliminated, making it very fast to respond.

It'd be nice to be able to configure the extension to run mvnd instead of mvn(w)

Describe the solution you'd like
Provide a setting for running mvnd instead of mvn(w)
Provide a setting for setting the path to the mvnd executable

Additional context
I'm sure @ppalaga will be happy to provide more guidance on mvnd ;-)