[Samples] Fixed ShowUV/ShowNormals/ShowTangents debug materials (used in Bump Mapping sample)
[Samples] Fixed ShowUV/ShowNormals/ShowTangents debug materials (used in Bump Mapping sample)

--HG--
branch : v1-9

digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre