Add friendly name to node

[giurgiur99]

Fixes #1040

Changes proposed in this PR:

• Add friendly name derived from public key
• 4 words for friendlyName (default)

Response { "command": "status" }

{
    "id": "16Uiu2HAm7tJg8MXgUzxxUXi55dVL86MNsrSJiLS3EjxWRqvTTEGw",
    "publicKey": "0802122102b91ed5f65fbb9e7a76dd97b122af57df99fadc7924aff7435d384de980144f40",
    "friendlyName": "salami-pip-jig-video",
    "address": "0x6D91c0Cd4588E7986Bd7A859C0EE22762c2BE06E",
    "version": "0.2.3",
    "http": true,
    "p2p": true,
    ....
 }