Struct to ByteArray

https://stackoverflow.com/questions/3278827/how-to-convert-a-structure-to-a-byte-array-in-c

https://docs.microsoft.com/en-us/dotnet/api/system.runtime.interopservices.marshal.ptrtostructure?redirectedfrom=MSDN&view=net-5.0#System_Runtime_InteropServices_Marshal_PtrToStructure_System_IntPtr_System_Type_