Remove dependencies M5Unified and M5GFX because:
- Sometimes the release doesn't even compile
- The amount of functions is too close to the limit (I recently had to remove some code/dependency to be able to make a build at all)
- Graphics performance issue since last update
- Touch screen performance issues (not perfect yet, but better)
- Compatibility issues with Tactility SPI/I2C versus M5Unified/M5GFX variants.
- Change init sequence: I2C is now initialized before "power" init phase, to allow for I2C power control
- I2c HAL: Added read/write support for registers
- Added axp192 code from https://github.com/tuupola/axp192 to Core2 implementation
- Fixes for Core2Power
- Fix for root project CMakeLists.txt
- Create real drivers instead of wrapping M5Unified/M5GFX
- Display HAL improvements (better default base class behaviour)
- Fixed bug with LVGL statusbar service locking (would hang indefinitely waiting for mutex, causing WDT issues)
- Fixes for `Critical.h`
- Fixes and improvements for `Dispatcher` and `DispatcherThread`
