Nekotekina types.hpp: implement min_v<>, max_v<>, SignedInt, UnsignedInt, FPInt …
2491aad May 23, 2021
types.hpp: implement min_v<>, max_v<>, SignedInt, UnsignedInt, FPInt …
…concepts

Restrict smax to only work with signed values for consistency.
Cleanup <climits> includes.
Cleanup <limits> includes.
2491aad