Ability to omit (GPL) dependency from compilation

[liontiger23]

It would be great if plugin was capable of removing dependency from compilation, while keeping it in application's classpath, so it can be packaged alongside the application and loaded at run time.
This can be used to distribute GPL and LGPL dependencies until proper support for LGPL jars in JET.

Currently to achieve the same result you will have to exclude the GPL dependency from all other dependencies (the easiest way is probably to create an uber jar and exclude GPL packages from it), and then explicitly package necessary jars using the <packagePath> parameter of the <dependency> configuration.