Method PopUnsignedByte

src/newgrf_text.cpp:694–700

	}

	uint8_t PopUnsignedByte()
	{
		if (this->stack.empty()) return 0;
		auto res = this->stack.back();
		this->stack.pop_back();
		return res;
	}
	int8_t   PopSignedByte()    { return (int8_t)this->PopUnsignedByte(); }

	uint16_t PopUnsignedWord()