title: Maven assembly : add different version of the same artifact
body: <p>I create my application archive with the maven assembly plugin. 
  All the dependency present in my pom are included without any problem.</p>
  
  <p>Now I need to include two or more version of the same artifact.</p>
  
  <p>If in my pom I put</p>
  
  <pre><code>&lt;dependencies&gt;
          [...]
          &lt;dependency&gt;
              &lt;groupId&gt;db.test&lt;/groupId&gt;
              &lt;artifactId&gt;my-model&lt;/artifactId&gt;
              &lt;version&gt;1.0.3&lt;/version&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;db.test&lt;/groupId&gt;
              &lt;artifactId&gt;my-model&lt;/artifactId&gt;
              &lt;version&gt;1.1.0&lt;/version&gt;
          &lt;/dependency&gt;
  &lt;/dependencies&gt;
  </code></pre>
  
  <p>Of source the dependenvcy resolver remove the old version and only the 1.1.0 is packaged in the archive</p>
  
  <p>I try to include the jar by using assembly xml descriptor file. And I didn't find any solution.</p>
  
  <p>A possible solution will be to manually put all the needed model.jar inside a folder and tell the assembly to copy it in the archive. But I'm looking for a more configurable solution.</p>
  
  <p>Any idea ?</p>