graphics: count occlusion queries on the host GPU behind --occlusion-queries

src/graphics/host_gpu/graphicContext.h

@@ -36,6 +36,8 @@ struct GraphicContext {
 	bool                               provoking_vertex_last_enabled         = false;
 	bool                               maintenance8_enabled                  = false;
 	bool                               conditional_rendering_enabled         = false;
+	bool                               occlusion_queries_enabled             = false;
+	bool                               occlusion_query_precise_enabled       = false;
 	bool                               supports_block_texel_view              = false;
 	bool                                      mesh_shader_enabled                   = false;
 	vk::PhysicalDeviceMeshShaderPropertiesEXT mesh_shader_properties                = {};