conf: Split out storage pool source adapter helpers
conf: Split out storage pool source adapter helpers

Split out the code that munges through the storage pool adapter into
helpers - it's about to be moved into it's own source file.

This is purely code motion at this point.

Signed-off-by: John Ferlan <87558058f6f829e5ec976c8ef960720af4ff9c7d@redhat.com>

jfehlig/libvirt,libvirt/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,datto/libvirt,VenkatDatta/libvirt,eskultety/libvirt,eskultety/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,libvirt/libvirt,jardasgit/libvirt,olafhering/libvirt,libvirt/libvirt,eskultety/libvirt,jardasgit/libvirt,VenkatDatta/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,crobinso/libvirt,andreabolognani/libvirt,eskultety/libvirt,zippy2/libvirt,andreabolognani/libvirt,nertpinx/libvirt,datto/libvirt,jardasgit/libvirt,datto/libvirt,olafhering/libvirt,nertpinx/libvirt,jardasgit/libvirt,eskultety/libvirt,olafhering/libvirt,crobinso/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,zippy2/libvirt,zippy2/libvirt,olafhering/libvirt,datto/libvirt,zippy2/libvirt,jardasgit/libvirt,andreabolognani/libvirt,crobinso/libvirt,nertpinx/libvirt,datto/libvirt,libvirt/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt,VenkatDatta/libvirt,nertpinx/libvirt,crobinso/libvirt