v0.1.2 - WPM & Accuracy measurements

This small update focuses on the typing aspect of Grid of Yendor, and prepares for future releases with behind-the-scenes refactors.

Changelog

• Added WPM and accuracy measurements/display
• Added honour - an aggregate score system based on WPM, accuracy, completion time, and characters typed
• Results screen shows more stats
  
• Cells show their coordinates when emptied

I'm planning to expand many of these features in the future.