public static Builder PriorityModifier(this Builder builder, int modify)
 => builder.WithPriority(builder.Priority + modify);
 public static Builder WithPreProcessPriority(this Builder builder)
 => builder.WithPriority(TransformationPriority.PreProcess);
 public static Builder WithStitcherPriority(this Builder builder)
 => builder.WithPriority(TransformationPriority.Stitcher);
 public static Builder WithRouterPriority(this Builder builder)
 => builder.WithPriority(TransformationPriority.Router);
 public static Builder WithMinifierPriority(this Builder builder)
 => builder.WithPriority(TransformationPriority.Minifier);
 public static Builder WithCompilerPriority(this Builder builder)
 => builder.WithPriority(TransformationPriority.Compiler);