Fix spellcasting and dynamic menus

- Spell targeting line and array draws nicely, though not the same as the original
- Fix targeting falsely complaining about being off the edge of town
- Monster info dialog works properly; attacks now display correctly
- Fix dialogs always showing the wrong terrain or monster graphic
- Spell menus, monster menus, and PC editor item menus all work
- Spellcasting dialog now chooses the correct spell
- Fix out-of-place LED in spellcasting dialog

osx/tools/graphtool.h

@@ -95,6 +95,7 @@ void fill_roundrect(sf::RenderTarget& target, RECT rect, int rad, sf::Color colo
 void frame_roundrect(sf::RenderTarget& target, RECT rect, int rad, sf::Color colour);
 void fill_region(sf::RenderWindow& target, Region& region, sf::Color colour);
 void frame_region(sf::RenderWindow& target, Region& region, sf::Color colour);
+void draw_line(sf::RenderTarget& target, location from, location to, int thickness, sf::Color colour, sf::BlendMode mode = sf::BlendNone);
 
 void clip_rect(sf::RenderTarget& where, RECT rect);
 void clip_region(sf::RenderWindow& where, Region& region);