Set all datamodel-related flags in structopt

[pimeys]

Env vars still work, but are now included in the structopt setup of Prisma.

OPTIONS:
        --datamodel <datamodel>                            Base64 encoded Prisma datamodel [env: PRISMA_DML=]
        --datamodel-path <datamodel-path>                  Path to the Prisma datamodel file [env: PRISMA_DML_PATH=]
    -H, --host <host>
            The hostname or IP the query engine should bind to [default: 127.0.0.1]

        --overwrite-datasources <overwrite-datasources>
            Base64 encoded datasources, overwriting the ones in the datamodel [env: OVERWRITE_DATASOURCES=]

    -p, --port <port>
            The port the query engine should bind to [env: PORT=]  [default: 4466]

[tomhoule]

🔥 🔥 🔥

Amazing!