Realize the visualization of the new algorithm through JSON

[shihuili1218]

Now visualizing a new algorithm requires hard coding, such as: paxos

This could have been optimized into JSON to configure the visualization of the algorithm. JSON for example:

    {
        "delay": 100,
        "title": "Accept Paxos",
        "continue": "visible"
    },
    {
        "delay": 200,
        "wait": true
    },
    {
        "delay": 800,
        "title": "",
        "continue": "hidden"
    },
    {
        "delay": 800,
        "title": "",
        "create": [
            {
                "type": "client",
                "id": "X",
                "state": "proposer"
            },
            {
                "type": "node",
                "id": "P",
                "state": "proposer"
            }
        ]
    }
]```