vsh: create a noinstall libvirt_shell library
vsh: create a noinstall libvirt_shell library

Instead of referencing vsh sources in all relevant client targets,
create a library that the client can link against.

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