用c++创建GameplayTags-UGameplayTagsManager::Get().AddNativeGameplayTag

UGameplayTagsManager::Get().AddNativeGameplayTag

example：

FGameplayTag Attributes_Primary_Strength;

Attributes_Primary_Strength = UGameplayTagsManager::Get().AddNativeGameplayTag(
    FName("Attributes.Primary.Strength"),
    FString("增加物理伤害")
    );