feat(bici): generate BICI documentation (#17)

Integrate the BICI migrated content and document how this has been done for reuse with other content (based on previous poc).
The antora-ui bundle has been generated from a previous poc, it will be updated with content of bonitasoft/bonita-documentation-theme later

This also setup
    - build with npm: shared commands and shared dev/build setup
    - antora playbook: more ready for GH pages deployment
    - allow to build the site for local and production usage
    - allow to run local http server for evaluation