Add more abilities in the sample

Source/CogSample/CogSampleModifierCalculation_Cooldown.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include "CoreMinimal.h"
+#include "GameplayModMagnitudeCalculation.h"
+#include "GameplayEffectTypes.h"
+#include "CogSampleModifierCalculation_Cooldown.generated.h"
+
+UCLASS(BlueprintType, Blueprintable)
+class UCogSampleModifierCalculation_Cooldown : public UGameplayModMagnitudeCalculation
+{
+    GENERATED_BODY()
+
+public:
+
+    UCogSampleModifierCalculation_Cooldown();
+
+    float CalculateBaseMagnitude_Implementation(const FGameplayEffectSpec& Spec) const override;
+
+private:
+
+    FGameplayEffectAttributeCaptureDefinition CooldownReductionDef;
+};