In preparation to moving the matrix implementation from libipa to libcamera copy the corresponding files to the new location. The files are copied without modification to make upcoming integration changes easier to see. The new files are not included in the build and therefore have no negative side effects on the build. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>