Attributes display and minor improvements

Enhancements:
- Gnome attributes are now displayed in the Skills sheet
- Combat skills are displayed first in the skills sheet
- Numeric columns in skills and stats tables are right aligned.

Fixed bugs:
- Mining skill was not displayed
- Bonecarving, medic and care taking skills were not displayed in the right order compared to in game
 - Crossbow, Gun and Shield skills were not displayed in the right order compared to in game

Internal: 
- Added comments to data table event handlers in Main.cs