Support more than 2 params in FNFPsych events

[KittySleeper]

Because There Is Only Two Params With Psych Events And VSlice Charts Can Have Infinite Params This Causes An Issue With Converting Where Some Params Just Get Ignored, You Should Maybe Make An Option/Solution To This

[MaybeMaru]

Added support for these additional events data to be converted in this commit cd53d86 using the following new settings:

var vslice:FNFVSlice = new FNFVSlice().fromFile(
'test/vslice/spaghetti/spaghetti-chart.json',
'test/vslice/spaghetti/spaghetti-metadata.json'
);

var psych:FNFPsych = new FNFPsych();
psych.stackEvents = true;
psych.stackEventsSeparator = ",";
psych.keepCamFocusEvents = true;
psych.fromFormat(vslice, 'hard').save('test/vslice/spaghetti/spaghetti-psych');

Which stacks events with more than two values like this:

[
	54081.0672197309,
	[
		[
			"FocusCamera",
			"-1,4,INSTANT,Out,870,81",
			""
		]
	]
]