try to fix submodule

firmware/lib/Arduino-FOC/src/sensors/GenericSensor.cpp

@@ -0,0 +1,26 @@
+#include "GenericSensor.h"
+
+
+/*
+  GenericSensor( float (*readCallback)() )
+  - readCallback - pointer to the function which reads the sensor angle.
+*/
+
+GenericSensor::GenericSensor(float (*readCallback)(), void (*initCallback)()){
+  // if function provided add it to the 
+  if(readCallback != nullptr) this->readCallback = readCallback;
+  if(initCallback != nullptr) this->initCallback = initCallback;
+}
+
+void GenericSensor::init(){
+  // if init callback specified run it
+  if(initCallback != nullptr) this->initCallback();
+  this->Sensor::init(); // call base class init
+}
+
+/*
+	Shaft angle calculation
+*/
+float GenericSensor::getSensorAngle(){
+  return this->readCallback();
+}