Fix include errors when used as submodule

Author: WilliamBarber

CMakeLists.txt

@@ -48,6 +48,8 @@ add_library(PropulsionFunctions
         lib/Command_Interpreter.h
         lib/Wiring.cpp
         lib/Wiring.h
+        lib/Serial.cpp
+        lib/Serial.h
 )
 include(GoogleTest)
 

lib/Serial.cpp

@@ -3,7 +3,7 @@
 #include "Serial.h"
 
 
-int serialOpen (const char *device, const int baud) { //from WiringPi
+int serialOpen(const char *device, const int baud) { //from WiringPi
   struct termios options ;
   speed_t myBaud ;
   int     status, fd ;

lib/Serial.h

@@ -10,7 +10,7 @@
 #include <cstdint>
 #include <string>
 
-int serialOpen (const char *device, const int baud);
+int serialOpen(const char *device, const int baud);
 void serialPuts(const int fd, const char *s);
 int serialGetchar (const int fd);
 void echoOn(int serial);

lib/Wiring.cpp

@@ -20,7 +20,7 @@ void WiringControl::printToSerial(const std::string& message) {
 
 #else
 
-#include <Serial.h>
+#include "Serial.h"
 
 bool WiringControl::initializeSerial() {
     if ((serial = serialOpen("/dev/serial/by-id/usb-MicroPython_Board_in_FS_mode_e66130100f198434-if00", 115200)) < 0) {