Add a public chromatic adaptation API to ColorSpace

This change adds a public version of ColorSpace.chromaticAdaptation(),
so that chromatic adaptation can be done on independent CIE xyY or XYZ
coordinates without the involvement of ColorSpace.Rgb.

Test: cts-tradefed run singleCommand cts-dev --module CtsGraphicsTestCases --test android.graphics.cts.ColorSpaceTest
Bug 116516917

Change-Id: I73c33750c343301bed4bb018c351d87c5043b59b