style: Ensured coding conventions

Source/StudyFrameworkPlugin/Private/GazeTracking/SFGazeTracker.cpp

@@ -253,8 +253,6 @@ FString USFGazeTracker::GetCurrentGazeTarget()
 		}
 	}
 	
-
-
 	return "";
 }
 
@@ -294,7 +292,7 @@ bool USFGazeTracker::LaunchCalibration()
 	return false;
 }
 
-bool USFGazeTracker::IsTrackingEyes()
+bool USFGazeTracker::IsTrackingEyes() const
 {
 	if (!bEyeTrackingStarted)
 		return false;
@@ -318,7 +316,7 @@ bool USFGazeTracker::IsTrackingEyes()
 	return false;
 }
 
-float USFGazeTracker::GetEyesOpenness()
+float USFGazeTracker::GetEyesOpenness() const
 {
 	if (!IsTrackingEyes())
 	{

Source/StudyFrameworkPlugin/Public/GazeTracking/SFGazeTracker.h

@@ -67,12 +67,12 @@ public:
 
 	//whether currently the eyes are tracked, otherwise head-forward is used (this can change during execution if the HMD is taken off etc.)
 	UFUNCTION(BlueprintCallable)
-	bool IsTrackingEyes();
+	bool IsTrackingEyes() const;
 
 	// a value (mean of both eyes), how open the eyes are from 0.0 (fully closed), to 1.0 (fully opened), extreme values might not be reached
 	// returns -1.0 if the eyes are not tracked or not value can be estimated
 	UFUNCTION(BlueprintCallable)
-	float GetEyesOpenness();
+	float GetEyesOpenness() const;
 
 	bool DataAlreadyLogged();
 	void SetDataLogged();

Source/StudyFrameworkPlugin/Public/SFStudySetup.h

@@ -94,7 +94,7 @@ public:
 	UPROPERTY(BlueprintReadOnly, EditAnywhere, Instanced, meta = (TitleProperty = "Name", Category = "Study Setup"))
 	TArray<USFIndependentVariable*> IndependentVariables;
 
-	//give names of phases wich should be randomized in their order between participants
+	//give names of phases which should be randomized in their order between participants
 	UPROPERTY(BlueprintReadOnly, EditAnywhere, meta = (Category = "Study Setup"))
 	TArray<FString> PhasesToOrderRandomize;