Add an example on how to add a configurator

[hadarshavit]

Sparkle is now decoupled from SMAC2.
However, the only configurator that there is an example for is SMAC2 which is Java based.
Add an example on how to add a new configurator, preferably a Python one with an ask-tell interface.
For example: https://automl.github.io/SMAC3/main/examples/1_basics/3_ask_and_tell.html

[thijssnelleman]

Currently still busy with adding in one myself, once that is done we can write a how-to instruction manual