feat(dre): number of nodes per subnet for node operators

[NikolaMilosa]

Summary

This PR is focused into adding data related to number of nodes in subnets per node operator and adding a view of node provider data.

Node operator modifications

Equals to jq query:

dre registry | jq '[.nodes.[] | select(.subnet_id != null) | select(.node_provider_id == "sqhxa-h6ili-qkwup-ohzwn-yofnm-vvnp5-kxdhg-saabw-rvua3-xp325-zqe")] | length'

The zoomed in output of the command for each node_operator will be something like:

{
  "node_operator_principal_id": "fthz3-5otsb-xppaq-zhlut-dxel6-5fgxj-oz56h-r7zrz-xlq5z-cxpe4-uae",
  "node_allowance_remaining": 0,
  "node_allowance_total": 0,
  "node_provider_principal_id": "sqhxa-h6ili-qkwup-ohzwn-yofnm-vvnp5-kxdhg-saabw-rvua3-xp325-zqe",
  "node_provider_name": "43rd Big Idea Films",
  "dc_id": "hu1",
  "rewardable_nodes": {
    "type0": 14
  },
  "ipv6": "",
  "total_up_nodes": 14,
  "nodes_health": {
    "Healthy": [
      "5qmio-5ls3e-yujlz-eqt7k-qk5ys-bscfd-7w2rn-2q3fq-6smjq-n7asc-xae",
      "6pt6z-rdv25-glenj-xvuq3-zdeeu-4c74r-smqeh-tgt34-exgd6-2wxvv-eqe",
      "7r64j-zqmz7-krqtz-zetpm-x56et-wkege-el55a-nbgwx-dffso-lbtob-4qe",
      "akbo3-imbii-tzc4p-swdwz-hh2tg-i2ffj-tnzjy-zycuo-3xjcq-zxbth-aqe",
      "ayugg-n2ex3-azu4v-3sddp-mtbj5-k3ygp-tcmmy-pp2f3-3faes-hw77i-aqe",
      "ghmoa-vaks4-tubtk-z3wml-wglax-lrfzt-6lh7y-uwgzg-ly4iv-zubjh-iqe",
      "ham46-r7u4j-yoyrk-mrnxu-utzq3-c37he-vcns2-gc5yg-jxyv5-mvlhc-gae",
      "m2g5i-bmomq-dyjao-k642i-fsfxg-trxki-6i42q-hm6ec-xu5cd-n5jhq-sqe",
      "wh2dv-njrdv-4xdwd-dflb2-mjoel-l6pkz-e37ap-pkcjx-jyasn-hawsc-wqe",
      "wix7d-hb2a6-2pcsi-xwm54-gmlxk-gfh3d-dtfog-h7o35-vzm56-w7h34-6qe",
      "wqqsg-ww46o-muchq-pty53-amebx-mucdz-ugjkt-fvjqr-5ncmg-knqg4-aqe",
      "wxhcm-5armm-j6fvs-lts6q-waitz-k6t4q-ncfbh-2t6ee-nv2tn-keod2-uae",
      "xcfmt-vumwz-773ew-pvwnt-lgwlu-prfzm-lvitu-bx7ru-ncgqg-srhut-mae",
      "yqbqe-whgvn-teyic-zvtln-rcolf-yztin-ecal6-smlwy-6imph-6isdn-qqe"
    ]
  },
  "rewards_correct": true,
+ "nodes_in_subnets": 2
}

Node provider data

Added a dedicated section for node_providers in the dump. Current data (zoomed in to only node_providers):

    {
      "name": "DFINITY Operations SA",
      "principal": "bvcsg-3od6r-jnydw-eysln-aql7w-td5zn-ay5m6-sibd2-jzojt-anwag-mqe",
      "total_nodes": 63,
      "nodes_in_subnet": 36,
      "nodes_per_dc": {
        "mr1": 22,
        "sh1": 28,
        "zh2": 13
      }
    },
    {
      "name": "Origin Game",
      "principal": "cgmhq-c4zja-yov4u-zeyao-64ua5-idlhb-ezcgr-cultv-3vqjs-dhwo7-rqe",
      "total_nodes": 7,
      "nodes_in_subnet": 3,
      "nodes_per_dc": {
        "hk4": 7
      }
    },
    {
      "name": "Rachel Dymecki",
      "principal": "chnsu-yaqt5-6osy5-au4zn-li6yu-nufmw-dewrt-utkiu-twd76-ujypw-rae",
      "total_nodes": 1,
      "nodes_in_subnet": 0,
      "nodes_per_dc": {
        "at1": 1
      }
    }

[pietrodimarco-dfinity]

LGTM but I wouldn't know how they want to use dre tooling from pub. dashboard to get this info. Also I think they have everything they need to construct this aggregation is probably just a matter of adding this frontend side