[xcode14][coreimage] LabToRGBFilter and RGBtoLabFilter disabled in bindings

[chamons]

In Xcode 14 Beta 1, Apple introduced an unorthodox pair of CoreImage filters:

++ (CIFilter<CIConvertLab>*) convertLabToRGBFilter NS_AVAILABLE(13_0, 16_0);
++ (CIFilter<CIConvertLab>*) convertRGBtoLabFilter NS_AVAILABLE(13_0, 16_0);

These are two separate filters with the same exact type.

I tried binding them as two different types with:

    [CoreImageFilter]
    [iOS (16,0), TV (16,0), Mac (13,0), MacCatalyst (16,0)]
    [BaseType (typeof (CIFilter))]
    interface LabToRGBFilter : CIConvertLabProtocol
    {
    }

    [CoreImageFilter]
    [iOS (16,0), TV (16,0), Mac (13,0), MacCatalyst (16,0)]
    [BaseType (typeof (CIFilter))]
    interface RGBtoLabFilter : CIConvertLabProtocol
    {
    }

but that fails a number of introspection tests:

[FAIL] CoreImage.LabToRGBFilter : Handle
[FAIL] CoreImage.RGBtoLabFilter : Handle
	[FAIL] DefaultCtorAllowed :   2 potential errors found in 1668 default ctor validated:
[FAIL] Managed LabToRGBFilter was not part of the native filter list
[FAIL] Managed RGBtoLabFilter was not part of the native filter list
	[FAIL] Keys : System.ArgumentNullException : Value cannot be null. (Parameter 'array')
Tests run: 44 Passed: 42 Inconclusive: 0 Failed: 2 Ignored: 1
[FAIL] CoreImage.LabToRGBFilter : Handle
[FAIL] CoreImage.RGBtoLabFilter : Handle
	[FAIL] DefaultCtorAllowed :   2 potential errors found in 1672 default ctor validated:
[FAIL] Managed LabToRGBFilter was not part of the native filter list
[FAIL] Managed RGBtoLabFilter was not part of the native filter list
	[FAIL] Keys : System.ArgumentNullException : Value cannot be null.
Tests run: 46 Passed: 44 Inconclusive: 0 Failed: 2 Ignored: 0

I could bind them as one type, however things would be difficult to use from C# if we did that.

To unblock the rest of CoreImage, I disabled those two and PR'ed the rest.