virt: Added GithubIssues tool/module/class and example

Signed-off-by: Chris Evich <cevich@redhat.com>
virt: Improve github_issues and examples

* Be less pedantic about re-formatting already cached data
* Added 'url' key to standardized issue format
* Added two useful sample report scripts

Signed-off-by: Chris Evich <cevich@redhat.com>
virttest.build_helper: Add remote origin and submodule init

Add the proper origin, and fetch submodules for git repos,
that'll make it possible to build QEMU with spice support
from source.

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
qemu/cfg/build.cfg: Remove qemu-kvm and add spice-common repos

QEMU-KVM is no more, and spice was split in spice common and
protocol, so let's update the build.cfg file with that
information.

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>