update _service to use github.com/seifes-obs-packages/bluez.git OBS-URL: https://build.opensuse.org/request/show/735605 OBS-URL: https://build.opensuse.org/package/show/Base:System/bluez?expand=0&rev=276
consolidate patches, move patch management to github OBS-URL: https://build.opensuse.org/request/show/734950 OBS-URL: https://build.opensuse.org/package/show/Base:System/bluez?expand=0&rev=274