Context

As outlined in the RFC: In-Place Model Updates for Project, Sample, and Library, we're going to be adding in-place model updating for the project, sample and library models.

Problem or idea

This ticket will focus on adding an abstract base class called LoadableResourceABC, which will implement state, hash, and loaded_at attrs, with get_hash and update_state property methods.

Solution or next step

• Add LoadableResourceABC abstract base class implement methods
• Add migration