[FIX] How to create subdirectories in Source folder for C++ files without errors in UE5

[Fulezi]

Actually you just need to include your own module in the include path.
My game name is BattleHeight:

BattleHeight.build.cs

public BattleHeight(ReadOnlyTargetRules Target) : base(Target)
	{
		PrivateIncludePaths.AddRange(new string[]
		{
			"BattleHeight"
		});
}