Allow the same repository to be added to multiple projects

Currently, the beta interface for projects implies that the relationship between projects and interfaces is one to many.
E.g. 1 Project has many Repositories, and 1 Repository can only ever belong to one project

I think it is better served as a many to many.

E.g. 1 Project has many Repositories, but 1 Repository can belong to many projects.

Here's my reasoning... I would like to visualize in some way all the dependencies that my project has. For example, lets assume that I have a package that I use across multiple projects, e.g. a CSS framework, an authentication package, a specific API interface, or even a jQuery plugin that I wrote.

With the new interface, I could theoretically visualize all the dependencies for A Project , but if I made a new project that is relatively similar, I can't visualize it in the same way, I can't add the same repositories as the current relationship is only 1 to Many.