More intializers

[twodayslate]

There are a ton of data types we could support. See https://github.com/vmanot/Swallow/blob/9f686ef305b6c83179ace64eaa26a1b3877a640c/Sources/Intermodular/Helpers/Swift/FloatingPointInitiable.swift

Currently we only support Int and Double. It would not be hard to support more types