Add support for Twitch command attribute to work on methods with variable number of parameters (or arrays as parameters)

[danqzq]

Consider the example below:

[TwitchCommand("info", "i")]
public void Info(params string[] phrase) {
    // Parse phrase
}

Expected behavior

Viewers should be able to pass variable amount of arguments for this command, e.g:

!info hello - would result in phrase containing one element - "hello"

!info hello world - in this case phrase: {"hello", "world"}

!info twitch chat interactions - subsequently: phrase: {"twitch", "chat", "interactions"}

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This is a pretty heavy task, so feel free to consult for advice and guidance if you're willing to contribute.