Add new page listing what standard libraries we include, and how to request others

[sanjayankur31]

Just a list of what libraries we provide pre-installed in workspaces, and how one can request the addition of other general libraries.

[sanjayankur31]

Could also link to the Docker file as the authoritative source of this list.

[pgleeson]

Used for v2 live: https://github.com/OpenSourceBrain/OSBv2/blob/master/applications/jupyterlab/Dockerfile
Used for v2dev: https://github.com/OpenSourceBrain/OSBv2/blob/develop/applications/jupyterlab/Dockerfile

[pgleeson]

Partially here: https://docs.opensourcebrain.org/OSBv2/JupyterLab.html#configuration