bootstrap: create orig tarballs

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Add yet another source rpm

This srpm has auto-generated patches.

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
bootstrap: Support hooks

Initial support for per-branch hooks. Currently only post-build hook is
supported.

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
bootstrap: support silent building

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Add dummy orig archives for import_orig testing

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>