sane-airscan-0.99.29-bp160.1.13

- final adjustment for Obsoletes

- add Provides and Obsoletes for old packages

- remove code which related to the old packaging

- adapt packaging according to
  https://build.opensuse.org/request/show/1177729#comment-1944225
  (remove .so file and include the libsane-airscan.so.1 in the main
  package

- add runtime dependency

- initial packaging