Improve matlab role and playbook

[dometto]

At the moment we use a copy from the robotserver to install matlab. This is a bit cumbersome and heavy in maintenance. SURF seems to just pull the software from the web in their component: https://gitlab.com/rsc-surf-nl/plugins/plugin-matlab/

Additionally, SURF integrates Matlab with JupyterHub. This is nice! Maybe we can have an optional Matlab component for VRE Lab? If we could do this, it also means we could remove a dependency on the flaky Guacamole component for the Matlab desktop catalog item (as VRE Lab has better desktop functionality, not based on Guacamole).

Investigate:

• do we just want to use SURF component? can we add it as an optional component to VRE Lab?
  • what about license?
• or should we instead copy SURF's source into our matlab role and remove the robotserver dependency from it?
  • download/install matlab
  • automatically activate license?
  • install https://github.com/mathworks/jupyter-matlab-proxy#features-of-matlab-integration-for-jupyter
  • create a kernel