[CHARMAP_NEW]

- Implement drawing fonts onto the gridview
- Implement scrolling through the grid via the scrollbar
- When a new font is selected, setup that font for drawing. This includes setting up the DC for painting, getting the valid glyphs for that font (this fixes the bug in the existing viewer which has lots of squares for glyphs), setting up scrollbar info, etc.
- Make the cell object more responsible for its own painting
CORE-10518

svn path=/trunk/; revision=70098