Clean up warnings

[twsouthwick]

This change updates the code to remove warnings:

• Removes unused fields and variables
• Marks assemblies that had types that were not CLSCompliant as such
• Ran the resource tool generator to include those files
• Marked test class with NoWarn as the fix would be a bit more involved
• Removed some dead code
• Disabled warning for unused events
• Added fix for deprecated FormattedText API that now requires DPI information

[twsouthwick]

Let me know if you'd prefer smaller commits - I can break this up if needed.