Make the parser compile for Windows and Linux machines#53

PolarGoose wants to merge 1 commit intomatthijskooijman:mastermatthijskooijman/arduino-dsmr:masterfrom

PolarGoose:make_the_library_run_on_Windows_and_Linux_machinesPolarGoose/arduino-dsmr-make-work-on-Windows-and-Linux:make_the_library_run_on_Windows_and_Linux_machinesCopy head branch name to clipboard