rawspeed: import r558
(cherry picked from commit 193355d27a86fbf350fff4a75b63cf7ddac7587f)
rawspeed: olympus e-p5
(cherry picked from commit d10b1e86dce31525ab235c87da887bc4a59d4115)
adobe_coeff: preliminary olympus e-p5 matrix
(cherry picked from commit e92f160595fc4a1302513c69b748f8801b76afc5)