Allow option to skip evicted

[erikvanoosten]

I have to deal here with a depenency tree of 38K lines. It would be a lot more manageable if the evicted parts could be excluded. Please add a switch for that.

[MaxNevermind]

• skip skip lines: "| "
• skip dependency if its already mentioned above

Currently it's unreadable mess in comparison to maven's dependency:tree clean output. Output of this plugin is 9K lines for my project when Maven output is 200 lines. I guess it's easier to write a simple script to convert dependencies to some basic pom.xml and run mvn dependency:tree on it than use this.