This replaces the code for most of the in and output definitions. The are now read through a yaml config file where they are defined as a list of devices/endpoints. #71, #60, #41, #36

Removed the unused stream endpoints s1,s2,s3,s4 as their implementation is different from s0 and needs to be refactored anyway #71.

feat: add gitlab issue templates

See merge request !14

Fix docker image names for release

See merge request !13