Deprecate set method on MaterialBuilder (#545)

* Remove the defines entry in material definitions

* Deprecate set function

* Remove some getter methods from MaterilaBuilder

* Fix tests, add to CI

samples/sample_position_offset.cpp

@@ -129,8 +129,6 @@ static void setup(Engine* engine, View* view, Scene* scene) {
 
     Package pkg = MaterialBuilder()
             .name("PositionOffset")
-            .set(Property::BASE_COLOR)
-            .set(Property::ROUGHNESS)
             .material(R"SHADER(
                 void material(inout MaterialInputs material) {
                     prepareMaterial(material);