impr: Use boot start hook to call devices on node start

[speeddragon]

The use case is to start dev_cron to call dev_copycat on node start.

• start hook was created to modify NodeMsg (node config) before the node starts. So this behaviour needed to change a bit to support calling other devices.

Config

{
    "on": {
        "start": [{
            "device": "cron@1.0",
            "path": "every",
            "extra-params": {
                "interval": "10-second",
                "cron-path": "/~copycat@1.0/arweave&from+integer=-1&to+integer=-19"
            },
            "target": "self",
            "hook/result": "ignore"
        }],
        "request": [
            {"device": "rate-limit@1.0"},
            {
                "device": "auth-hook@1.0",
                "path": "request",
                "when": {"keys": ["authorization", "!"]},
                "secret-provider":
                    {
                        "device": "http-auth@1.0",
                        "access-control": { "device": "http-auth@1.0" }
                    }
            },
            {"device": "name@1.0"},
            {"device": "manifest@1.0"},
            {"device": "blacklist@1.0"}
        ]
    }
}