SL-17764: PBR: Add light shaders to class 3 deferred

...ew/app_settings/shaders/class1/deferred/deferredUtil.glsl

...pp_settings/shaders/class3/deferred/multiPointLightF.glsl

...pp_settings/shaders/class3/deferred/multiPointLightV.glsl

...app_settings/shaders/class3/deferred/multiSpotLightF.glsl

...iew/app_settings/shaders/class3/deferred/pointLightF.glsl

...iew/app_settings/shaders/class3/deferred/pointLightV.glsl

...view/app_settings/shaders/class3/deferred/spotLightF.glsl