File completion

[rfuehrer]

Before a publication the required files are

CODE_OF_CONDUCT
CONTRIBUTION
SECURITY

to the project. This helps the users of the repo, the cooperation with third parties becomes a bit clearer.

Proposal:
The files will be contributed to the project by the OST as PR.

[rfuehrer]

possible boilerplate: https://github.com/generaliinformatik/repo-boilerplate