WAMP Caller handler for LCU

[mikaeldui]

It would seem that it's easy to implement a WAMP Caller for the LCU client, to handle the REST requests.

Example request:

[
        2,
        "",
        "PUT /lol-chat/v1/friends/abcd1234-ab12-ab12-ab12-abcdef123456@eu1.pvp.net",
        {
            "note": "adc carry"
        }
]

This would almost solve #60.

Reference: https://gist.github.com/mikaeldui/f8d4294f7689654bcd7474981d8533c8

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What's needed

• Request ID dictionary.
• Request handler support.

Bonus

• Request handler for all APIs.