Converting a fixed width integer to Data in Swift. e.g. UInt32/Int32, etc.

FixedWidthInteger+Data.swift

extension FixedWidthInteger {
    
    var dataBigEndian: Data {
        var int = self.bigEndian
        return Data(bytes: &int, count: MemoryLayout<Self>.size)
    }
    
    var dataLittleEndian: Data {
        var int = self.littleEndian
        return Data(bytes: &int, count: MemoryLayout<Self>.size)
    }
}