Converts a playback [Bitmap] to an Android [Image] in YUV_420_888 format so it can be passed
as [com.nianticspatial.nsdk.FrameData.cameraImagePlanes] to [com.nianticspatial.nsdk.NSDKSession.sendFrame].
Caller must call [YuvImageHandler.close] when done (e.g. after sendFrame returns).
Converts [bitmap] to a YUV_420_888 [Image]. Returns null if conversion fails. Caller must call [YuvImageHandler.close] after use (e.g. after sendFrame returns).
Caller must call [YuvImageHandler.close] after use (e.g. after sendFrame returns).