Unity editor tools for defining AnimatorController templates which can be easily copied and assigned via editor scripts. This is useful if you want to have an editor option to 'Create a MyComponent' where new instances of MyComponent depend on having an animator whose controller has a particular set up, e.g must has this set of params and maybe a layer that handles the params in a particular way. An important point is that you want each new instance of MyComponent to have it's own (unshared) AnimatorController asset so that you can add layers, changes things etc without affecting other instances of MyComponent. These utils enable that by allowing you to define a template and then copy/assign that template to new instances.
