[cecilia] Document the Cecilia ADL Launcher parameters
The Cecilia ADL Launcher allows to pass various parameters, and some of them have also aliases.
It would nice to document these parameters in a web page (the newly created "cecilia-launcher" page is a good candidate) and to reference it from the "maven-ceciliaadl-plugin" and the "cecilia-distribution" / "ceciliac" sections, as they act as wrappers over the Cecilia ADL Launcher.