ICSHWI-7237: Update to match template IOC with metadata file
This updates the cookiecutter IOC to match the template IOC (given here: https://gitlab.esss.lu.se/ccce/dev/e3-ioc-ccce-example).
This updates the cookiecutter IOC to match the template IOC (given here: https://gitlab.esss.lu.se/ccce/dev/e3-ioc-ccce-example).