Add APACHE 2.0 license to repos.
All files have this header, propagate it to the public repos (af3, kernel, fortiss-std-env, exploration-alg.
(from redmine: issue id 3564, created on 2018-10-30, closed on 2019-09-30)
All files have this header, propagate it to the public repos (af3, kernel, fortiss-std-env, exploration-alg.
(from redmine: issue id 3564, created on 2018-10-30, closed on 2019-09-30)