Filter to hide/ignore some redundent dependencies

[ransagy]

Is your feature request related to a problem? Please describe.
Trying to generate a tree for a set of large solutions, It can get to over 2mil lines of json mostly due to System.* and Microsoft.* dependency graphs. Those are really redundent most of the time, So it would be nice to have some kind of a filter to remove that noise out of the way.

Describe the solution you'd like to see
A filter argument, possibly regex or just a wildcard is enough as a start, that will determine where to "cut off" the dependency tree at. I.e., --ignore System.*|Microsoft.* will let me denoise my generated tree by orders of magnitude, i think.

Describe alternatives you've considered
None, Save writing a wrapper around the results and removing those sub-tree myself, But that seemed pointless.

[eyalbe4]

Thanks for raising this requirement @ransagy!
We would gladly accept a pull request which adds this.