* Initial implementation of touch screen
* Updated NetBeans configuration
* Read number of touch points, cleanup
* Improve touch support

- avoid duplicate touch events by interrupting on falling edge only
- read touch event flags
- refactoring for better code reuse

* Some more refactoring
* Initial function to draw continuous lines

- connect points with a distance > 1 with linear interpolation during
  touch contact

* Fix conversion from 4-Bit greyscale to 16-Bit RGB

- removes reddish antialiasing that was present with some chars

* Add initial paint toy + related refactoring
* Add some tools with icons
* Add more tools + improvements

- draw rectangles
- set line thickness
- account for line thickness in dimensions

* Update README.md, re-enable all glyphs and emojis.