Determine the future of projects/NetworkServer

[gwils]

The projects/NetworkServer directory contains an optional extra project for a student looking to go further than the intro course material goes, and do something more "real world".

Currently, NetworkServer only works with cabal new-build. It does not work with standard cabal install unless you are using exactly cabal version 1.24 (which comes with GHC 8.0). Furthermore, even with new-build it does not have an install plan for GHC 8.4 (the latest GHC release at the time of writing this issue).

projects/NetworkServer should be modernised if we still intend it to be useful. In particular, it should be changed to build with the newest ghc release with new-build, and with a greater range of ghcs with old-style cabal. All this could be achieved by an overhaul of the Setup.lhs script.

That being said, I can't help but wonder whether projects/NetworkServer is deprecated by our applied-fp-course, which also focuses on building a real-world program with a greater scope and more direction than projects/NetworkServer. This being the case, it might be worthwhile deleting projects/NetworkServer to avoid the maintenance cost, and instead pointing to the applied course.

[puffnfresh]

From what I can see, applied-fp-course should replace the project. My classes haven't done it and we haven't got any plans to.

[gwils]

Deleted in favour of applied-fp-course