Add debian packaging directory

Requires https://github.com/spotify/dh-virtualenv to build.

If the dependencies are met simply run debuild in the top folder.

Signed-off-by: Christoph Kassen <c.kassen@telekom.de>
Update debian package

Add postinst, postrm and dirs files
  - Create user, group and data dir / remove all
  - Define dirs to create

Redefine build and install dependencies

Signed-off-by: Christoph Kassen <c.kassen@telekom.de>
Merge pull request #17 from TelekomCloud/feature/debian-packaging

Feature/debian packaging