[FEA] 0-hop support for edge hops

[lmeyerov]

Is your feature request related to a problem? Please describe.

Currently can go 1+ hops out, but not 0+... which misses the closest (most important / most simple) reln!

Describe the solution you'd like

Ideas:

min_hops=0 (defaults to 1?)

Describe alternatives you've considered

Or maybe a boolean, allow_no_hops