MAjor upgrade to hub 3.0

• fastai 2.3 (Beckerle)
• fbprophet (Phil)
• pip install c kernel and not from github
• pip install stable-baselines3 (Hamza)
• make the mariadb_changes selfcontained and independent of user
  • partial workaround using a wrapper
  • Package more feature complete patch : https://github.com/MariaDB/mariadb_kernel/pull/25
• Install cuda headers and compilers to allow c++ development
• https://pypi.org/project/plotly/
• rsome
• gurobipy (mamab install -c gurobi gurobi) or python3 -m pip install gurobipy