File _constraints of Package darktable

<?xml version="1.0"?>
<constraints>
  <hardware>
    <cpu>
      <flag>avx2</flag>
    </cpu>
    <memory>
      <size unit="G">10</size>
    </memory>
    <disk>
        <size unit="G">5</size>
    </disk>
  </hardware>
</constraints>