WinIMergeLib: Add new member functions as listed below:

WinIMergeLib: Add new member functions as listed below:
	virtual int  GetPaneCount() const = 0;
	virtual RECT GetPaneWindowRect(int pane) const = 0;
	virtual RECT GetWindowRect() const = 0;
	virtual COLORREF GetDiffColor() const = 0;
	virtual void SetDiffColor(COLORREF clrDiffColor) = 0;
	virtual COLORREF GetSelDiffColor() const = 0;
	virtual void SetSelDiffColor(COLORREF clrSelDiffColor) = 0;
	virtual double GetDiffColorAlpha() const = 0;
	virtual void SetDiffColorAlpha(double diffColorAlpha) = 0;
	virtual int  GetConflictCount() const = 0;
	virtual bool SelectDiff(int diffIndex) = 0;
	virtual int  GetNextDiffIndex() const = 0;
	virtual int  GetPrevDiffIndex() const = 0;
	virtual int  GetNextConflictIndex() const = 0;
	virtual int  GetPrevConflictIndex() const = 0;
	virtual HWND GetPaneHWND(int pane) const = 0;
	virtual int  GetImageWidth(int pane) const = 0;
	virtual int  GetImageHeight(int pane) const = 0;
	virtual int  GetImageBitsPerPixel(int pane) const = 0;