Adding a starter kit for fsharp

[AndersBreg]

[StoneT2000]

Thanks for the contribution @Marsades !

No rush to do the following, but keep these in mind:

Can you please test your code using this kaggle notebook https://www.kaggle.com/stonet2000/lux-ai-2021-testing-new-non-python-starter-kits?scriptVersionId=76868015? If it works, please share the notebook here and once we review that, we'll be happy to merge this in.

Also, please update the README on the starter kits at the bottom of https://github.com/Lux-AI-Challenge/Lux-Design-2021#getting-started to add this kit, the link, and tag yourself for others who may need help or have questions.

Moreover, add a readme to your starter kits folder on how to use it and submit it.