Change GraphQL schema to return deployment metadata (IDs, reports, "branch" color)

[neysofu]

No description provided.

[fordN]

Proposing a schema for deployment query responses:

type Deployment { 
    id: String!
    poisCount: Int!
    pois: [POI!]
}

type POI {
    block: Block!
    hash: Bytes!
    deployment: Deployment!
    indexersCount: Int!
    allocatedTokens: BigInt
    indexers: [Indexer!]
}

type Block {
    number: Int!
    hash: Bytes!
}

type Indexer {
    id: String!
    allocatedTokens: BigInt!   
}

[fordN]

One thing with this proposed schema; the pois array on the Deployment type will continue to grow as the subgraph's latest block progresses. If all of these POIs are returned with a deployments() query it may not be useful.

I'd suggest we only return POIs from the latest block (for deployments queries). We could then support querying all of the POIs (for various blocks) via a POIs() query.

[fordN]

Thinking a bit more about my last comment. We may want to be more explicit about only exposing the latest block's unique POI values.

Proposing more specific property names:

type Deployment { 
    id: String!
    uniquePoisCount: Int!
    latestBlockPois: [POI!]
}

[neysofu]

Between this and #55, I'm getting confused about what the proposed schema looks like. I'll comment on #55.