New class: TrackedTextField. This class keeps track of the pointer in the text field. The hidden text field now has 40 placeholder spaces and the pointer is placed at the middle. When typing, placeholder spaces won't get removed as before. Autocorrect seem to be broken a bit for now.
Additional changes:
- Added missing GLFW functions (array version of other functions)
- Hotbar handling: doubled barWidth and barHeight
Bug fix:
- Touching onto the hotbar breaks the handling of on-screen tap/long-press gestures