Float operators are not yet supported

[pbiggar]

Dark's operators (+, -, *, etc) work on integers. In Dark v1, we use Float::+ instead, which doesn't suck but isn't great

Non-solution: We speculated that we could use the editor to simply hide the Float:: part. However, that doesn't allow polymorphism, you can't have a library that takes numbers of any kind and (for example) sums them.

Solution: use traits to support reuse of common operators for different types

[StachuDotNet]

folded into #5243