add cinder backend for dcache
add cinder backend for dcache

mikaeld66/himlar,tanzr/himlar,norcams/himlar,TorLdre/himlar,mikaeld66/himlar,TorLdre/himlar,raykrist/himlar,norcams/himlar,mikaeld66/himlar,TorLdre/himlar,tanzr/himlar,mikaeld66/himlar,mikaeld66/himlar,raykrist/himlar,raykrist/himlar,raykrist/himlar,norcams/himlar,TorLdre/himlar,norcams/himlar,norcams/himlar,tanzr/himlar,raykrist/himlar,TorLdre/himlar,tanzr/himlar,tanzr/himlar