[wpilibc] Remove ErrorBase (#3306)

Replace with new exception-based error reporting, consistent with Java.
This also builds stacktraces into the reporting/exceptions.

wpilibc/src/main/native/include/frc/MotorSafety.h

@@ -6,7 +6,6 @@
 
 #include <wpi/mutex.h>
 
-#include "frc/ErrorBase.h"
 #include "frc/Timer.h"
 
 namespace wpi {
@@ -21,10 +20,10 @@ namespace frc {
  *
  * The subclass should call Feed() whenever the motor value is updated.
  */
-class MotorSafety : public ErrorBase {
+class MotorSafety {
  public:
   MotorSafety();
-  ~MotorSafety() override;
+  virtual ~MotorSafety();
 
   MotorSafety(MotorSafety&& rhs);
   MotorSafety& operator=(MotorSafety&& rhs);