title: how to make unity build folders share the same assets
body: <p>I have multiple Unity3d applications (projects). But the underlying scenes and assets are meant to be common across these different applications. Right now, I am having to manually copy the assets folder across the different projects before a build is taken.</p>
  <p>How can I make my Unity project refer to a common assets folder (shared between more than one Unity project)?</p>
  <p>Is this possible ?</p>