Actually use ease functions input to InOut when applying

[8Keep]

The inputs supplied to InOut were unused, previously it always used the Quad ease functions declared earlier in the file.

[MeFisto94]

Great spot! That's a big oversight.
This will affect

jmonkeyengine/jme3-core/src/main/java/com/jme3/anim/interpolator/AnimInterpolators.java

Lines 134 to 177 in f808187

	//Time Interpolators
	public static class TimeInterpolator extends AnimInterpolator<Float> {
	private EaseFunction ease;
	public TimeInterpolator(EaseFunction ease) {
	this.ease = ease;
	}
	@Override
	public Float interpolate(float t, int currentIndex, TrackDataReader<Float> data, TrackTimeReader times, Float store) {
	return ease.apply(t);
	}
	}
	//in
	public static final TimeInterpolator easeInQuad = new TimeInterpolator(Easing.inQuad);
	public static final TimeInterpolator easeInCubic = new TimeInterpolator(Easing.inCubic);
	public static final TimeInterpolator easeInQuart = new TimeInterpolator(Easing.inQuart);
	public static final TimeInterpolator easeInQuint = new TimeInterpolator(Easing.inQuint);
	public static final TimeInterpolator easeInBounce = new TimeInterpolator(Easing.inBounce);
	public static final TimeInterpolator easeInElastic = new TimeInterpolator(Easing.inElastic);
	//out
	public static final TimeInterpolator easeOutQuad = new TimeInterpolator(Easing.outQuad);
	public static final TimeInterpolator easeOutCubic = new TimeInterpolator(Easing.outCubic);
	public static final TimeInterpolator easeOutQuart = new TimeInterpolator(Easing.outQuart);
	public static final TimeInterpolator easeOutQuint = new TimeInterpolator(Easing.outQuint);
	public static final TimeInterpolator easeOutBounce = new TimeInterpolator(Easing.outBounce);
	public static final TimeInterpolator easeOutElastic = new TimeInterpolator(Easing.outElastic);
	//inout
	public static final TimeInterpolator easeInOutQuad = new TimeInterpolator(Easing.inOutQuad);
	public static final TimeInterpolator easeInOutCubic = new TimeInterpolator(Easing.inOutCubic);
	public static final TimeInterpolator easeInOutQuart = new TimeInterpolator(Easing.inOutQuart);
	public static final TimeInterpolator easeInOutQuint = new TimeInterpolator(Easing.inOutQuint);
	public static final TimeInterpolator easeInOutBounce = new TimeInterpolator(Easing.inOutBounce);
	public static final TimeInterpolator easeInOutElastic = new TimeInterpolator(Easing.inOutElastic);
	//extra
	public static final TimeInterpolator smoothStep = new TimeInterpolator(Easing.smoothStep);
	public static final TimeInterpolator smootherStep = new TimeInterpolator(Easing.smootherStep);
	public static final TimeInterpolator constant = new TimeInterpolator(Easing.constant);

Which means the new animation system was kind of broken in that regard.
Is this worth backporting to 3.3? I guess we won't really do another 3.3 release, though.

[stephengold]

A 3.3.3 release is still possible, though I don't think this PR would be eligible for inclusion in it. To me, this looks like a reason to cut 3.4-alpha sooner rather than later.