Change CLI

[n13]

Quantus node CLI commands update

Remove: generate, inspect, insert
Keep: generate-node-key, inspect-node-key, quantus, help

Reasoning
generate is used to create EC keys (schnorr...) - this happens outside our code, in the sc-cli crate
inspect is complex and for EC keys
insert presumably also for EC keys

generate-node-key creates node identity key for libp2p - we still need this
inspect node key - inspects such keys
quantus - creates our keys

> quantus-node key --help
Commands:
  generate-node-key  Generate a random node key, write it to a file or stdout and write the corresponding peer-id to stderr
  generate           Generate a random account
  inspect            Gets a public key and a SS58 address from the provided Secret URI
  inspect-node-key   Load a node key from a file or stdin and print the corresponding peer-id
  insert             Insert a key to the keystore of a node
  quantus            Generate a quantus address
  help               Print this message or the help of the given subcommand(s)

[n13]

Done