Implementation of IsLowerCase

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1

This is how I did it:

bool FBullCowGame::IsLowerCase(FString string) const
{
	if (string.length() <= 0) { return false; }

	for (auto letter : string)
	{
		if (letter < 'a' || letter > 'z')
		{
			return false;
		}
	}

	return true;
}