bpx handler now working

linux/boardtest/UartTestClass.h

@@ -17,6 +17,15 @@ class UartTestClass : public TestTask {
   ReturnValue_t performPeriodicAction() override;
 
  private:
+  enum TestModes {
+    GPS,
+    // Solar Cell Experiment
+    SCE
+  };
+
+  void gpsInit();
+  void gpsPeriodic();
+  TestModes mode = TestModes::GPS;
   lwgps_t gpsData = {};
   struct termios tty = {};
   int serialPort = 0;