File _constraints of Package eigen

<?xml version="1.0" encoding="UTF-8"?>
<constraints>
  <overwrite>
    <conditions>
      <package>eigen:test</package>
    </conditions>
    <hardware>
      <disk>
        <size unit="G">32</size>
      </disk>
      <memory>
        <size unit="G">20</size>
      </memory>
    </hardware>
  </overwrite>
</constraints>