feat: extend peer identify with spell service version and allowed mounted binaries list [fixes NET-429 NET-381]

[kmd-fl]

Extend Peer.identify

• add list of allowed_binaries
• add spell_version

Looks like this

{
  "air_version": "0.38.0",
  "allowed_binaries": [
    "/usr/bin/ipfs",
    "/usr/bin/curl"
  ],
  "external_addresses": [],
  "node_version": "0.9.1",
  "spell_version": "0.5.6"
}

Spell version is determent as follows:

1. If it's loaded from crate, the crate version is in use.
2. If it's loaded from disk, version is in the format wasm hashes <hash1[..8]> <hash2[..8]> with first 8 symbols of each hash.

To do this, I needed to move Peer.identify implementation from builtins to the sorcerer. Can't say I like it very much, but it works.

[linear]

NET-429 provide API to list available mounted binaries

NET-381 Add Spell Service version to node info in `Peer.identify`

To easily track spells and find compatibility issues