Allow RequestFrameCallback not require data param

[FortyTwoFortyTwo]

When i want to call RequestFrame without any data param, RequestFrameCallback still requires me to add pointless data param.

public void OnPluginStart()
{
	RequestFrame(OnFrame);
}

public void OnFrame(int pointless)	//pointless param
{
	//do something
}

I want to allow plugin to be compiled without needing data param, making it look bit more nicer when not passing any data.

public void OnPluginStart()
{
	RequestFrame(OnFrame);
}

public void OnFrame()	//param not needed as RequestFrame not passing any data
{
	//do something
}

[Headline]

What are you using request frame for that made you want to make this contribution?

[FortyTwoFortyTwo]

One simple reason is when i have global variable(s) for stuffs around the code, I may need RequestFrame to reset, set or increase by 1 a frame later, without needing any extra params to set.

I could say same thing to timers, and typeset Timer already supports data param not required.

[Headline]

lgtm

[KyleSanderson]

haha. The param is still there - it's just 0...