Method IsWriting

pcsx2/StateWrapper.h:101–101

	bool IsGood() const { return !m_error; }
	bool IsReading() const { return (m_mode == Mode::Read); }
	bool IsWriting() const { return (m_mode == Mode::Write); }
	Mode GetMode() const { return m_mode; }
	void SetMode(Mode mode) { m_mode = mode; }
	u32 GetVersion() const { return m_version; }