(feat): filter graph generation

[vogloblinsky]

Watching demo graph, we can have very long graph, unreadable quickly.

An option for filtering could be fine :

ngd -f tsconfig.json -i module,component

[anton-ilin]

This option will be very useful! Also it would be nice to hide angular modules separately from project modules.

[DmitryEfimenko]

I'd love this feature as well. Filtering results to only display module dependencies would help when debugging bundle size issues.
@manekinekko Could this be squeezed in? I see you've estimated the effort as "easy" :)