Add action to copy models from a VDB into your workspace project

TEIIDDES-505 covered most of the refactoring issues with models in a workspace/project. However, the remaining use-case of importing a VDB into a project and trying to work with it has not been covered yet.

This feature would provide a means to extract/copy contents of a VDB and construct a corresponding file structure of folders/models within the VDB. This would be a "reverse-synch" methodology and allow users to use VDBs as a starting point for their modeling as well as the "ending point".