Feat: # of degrees of connections for a phrase

[jp4g]

Adds a new command grapevine show-connections <phrase_id>

• dependent on #17 to use the phrase UID
• Should return an array of length 7 where it represents # of N degree connections to a phrase
  • should this be dynamic and handle possibility of longer chains of degrees cuz people will mess with infra? for now not handling

For instance, for a phrase X where I have connections with 2 people of degree 3, 3 people of degree 4, and 6 people of degree 5, I will return: [0, 2, 3, 6, 0, 0, 0].

• The cli will then display this info for the phrase when show-connections is called

[barryWhiteHat]

Maybe we should just have a grapevine get-phrases that will list all the phrases according to how many peers know them and also shows this information. This command can also accept and will give you the specific information