Switch Generation Comparison

[Twon]

Benchmark an analysis of different approaches for generating compile switches, including performance, compile time performance and code generation:

• Compile time hashing
  • https://blog.demofox.org/2016/09/23/exploring-compile-time-hashing/
  • https://stackoverflow.com/questions/2111667/compile-time-string-hashing
• Preprocessor switch generation
• Boost MP11 approach
• Constexpr fold + constexpr if expressions

[Twon]

https://pydong.org/posts/variadic-switch/

[Twon]

WIP implementation: #175