doc/schema: Support iqn for storage pools
doc/schema: Support iqn for storage pools

iSCSI qualified names (iqn) from RFC3721 may contain colons (':'), which
neither matches the absFilePath nor genericName:

 $ virsh pool-dumpxml myiscsipool
 <pool type='iscsi'>
 ...
   <source>
 ...
     <device path='iqn.2003-01.org.linux-iscsi.phahn-sid93.x8664:sn.8a3daa0d4efd'/>
   </source>
 ...
 </pool>

Add IscsiQualifiedName type and allow its use in sourceiscsi.

Signed-off-by: Philipp Hahn <8cb7a2c205789112a9f61bc3102305826b6a8db1@univention.de>

jardasgit/libvirt,agx/libvirt,elmarco/libvirt,libvirt/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,crobinso/libvirt,VenkatDatta/libvirt,nertpinx/libvirt,rlaager/libvirt,olafhering/libvirt,rlaager/libvirt,taget/libvirt,nertpinx/libvirt,taget/libvirt,crobinso/libvirt,agx/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,eskultety/libvirt,libvirt/libvirt,jardasgit/libvirt,rlaager/libvirt,crobinso/libvirt,olafhering/libvirt,libvirt/libvirt,jardasgit/libvirt,rlaager/libvirt,elmarco/libvirt,andreabolognani/libvirt,agx/libvirt,elmarco/libvirt,shugaoye/libvirt,fabianfreyer/libvirt,taget/libvirt,zhlcindy/libvirt-1.1.4-maintain,datto/libvirt,nertpinx/libvirt,cbosdo/libvirt,elmarco/libvirt,jardasgit/libvirt,taget/libvirt,andreabolognani/libvirt,datto/libvirt,eskultety/libvirt,datto/libvirt,libvirt/libvirt,eskultety/libvirt,agx/libvirt,jardasgit/libvirt,shugaoye/libvirt,andreabolognani/libvirt,jfehlig/libvirt,zippy2/libvirt,zhlcindy/libvirt-1.1.4-maintain,olafhering/libvirt,fabianfreyer/libvirt,zippy2/libvirt,shugaoye/libvirt,crobinso/libvirt,VenkatDatta/libvirt,eskultety/libvirt,andreabolognani/libvirt,cbosdo/libvirt,rlaager/libvirt,zhlcindy/libvirt-1.1.4-maintain,shugaoye/libvirt,agx/libvirt,VenkatDatta/libvirt,jfehlig/libvirt,cbosdo/libvirt,olafhering/libvirt,shugaoye/libvirt,nertpinx/libvirt,andreabolognani/libvirt,cbosdo/libvirt,cbosdo/libvirt,elmarco/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,zhlcindy/libvirt-1.1.4-maintain,nertpinx/libvirt,eskultety/libvirt,zippy2/libvirt,zhlcindy/libvirt-1.1.4-maintain,taget/libvirt,zippy2/libvirt,fabianfreyer/libvirt,datto/libvirt,datto/libvirt