Is your feature request related to a problem? Please describe

Large workchains would benefit from the same concepts applied to CalcJobs, where the plugin developer can deside to add specific post-processing functionalities to the stored node (which appartently one cannot just simple add a property method to the plugin WorkChain class, since it's not loaded for a stored node?).

Describe the solution you'd like

Replicate the same concept as for CalcJobs to WorkChain, by introducting a tools property method.