Update module 8: Advanced programming techniques

[jemrobinson]

These changes will be coordinated by @jack89roberts

General (applicable to every module)

• Make each module independent of earlier ones (ie. do not rely on examples/specific code from earlier modules)
• Ensure that each module has some small exercises (say 1x 5 min exercise per 45 mins or teaching); add a larger (optional) exercise per course for attendees to complete in their own time
• Update to use more modern libraries and tools (eg. pandas/scipy/numba/poetry)
• Add instructions to the notebooks that you should "Take 5 minutes to do this exercise"
• Add estimated timing information at the top of each notebook
• Switch to a colourblind-friendly colour scheme throughout
• What do you wish people had told you about Python/coding in general?

Module 8: Advanced programming techniques

• Decorators would be clearer if the repeater function itself was a decorator, rather than the return value of a function.
• Clearly distinguish between an example decorator that takes and does not take an argument
• We skipped the final two advanced advanced notebooks due to lack of time. Decision: Bear in mind and see how things go in the flipped classroom model. Maybe highlight last two "advanced topic" notebooks as optional more strongly.
• PR #78
• Is this advanced programming or specifically advanced Python? ie. is it demonstrating general principles or Python idioms? Decision: I think the name is ok as is, especially under the context of a RSE with Python course. There are concepts like functional programming, exceptions etc. that appear that are not Python specific.