title: Is there a way to import an external git repo in to a git project and still manage it from there
body: <p>I have an <strong>adminControl</strong> project in a repository. This <strong>adminControl</strong> is an open source project and has the ability to perform all dynamic CRUD operations integrated in a beautiful UI and can fit into any project that runs PHP MySQL database depending on the parameters set.</p>
  
  <p>Now i want to start creating <strong>different websites</strong>, say blog, media, company, schools, you name it. Each of <strong>these websites</strong> would be a git repo on their own and the each of them would have the <strong>adminControl</strong> project in them to manage all admin functions of <strong>each website</strong>.</p>
  
  <p>Also i want all developers working on each of these projects to keep improving on the functionality and power of the <strong>adminControl</strong> project in their individual projects/repos/websites such that once they commit their changes, it'll also affect the main <strong>adminControl</strong> repo so that other project can pull the updates.</p>
  
  <p>Is this possible ?</p>