OpenLilyLib portal

[Andrew Bernard]

I've recreated a server to run a portal site for OpenLilyLib project and 
related topics.

https://openlilylib.space/

I'll be making the Discourse server today, for OLL specific discussion 
and support.

Also, I'll be providing access and support for the OLL repository on 
GitHub, which is after all the main point. At some time I feel the need 
to majorly refactor the repo codebase, but as this is disruptive I will 
not do this right away (and besides, it needs a lot of thinking to clean 
up).


Andrew