Tab5 audio, I2C improvements, UiDensity moved to lvgl-module and cleanup (#506)

- UiDensity moved to lvgl-module
- Deleted tt_hal and tt_hal_gpio (breaks apps, but will fix those right after merging)
- Added I2C 8 bit register operations
- Added device.properties to simulator
- Improved Tab5 hardware init, implement audio
- Add README.md to kernel

TactilityC/Include/tt_hal.h

@@ -1,32 +0,0 @@
-#pragma once
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** Affects LVGL widget style */
-typedef enum {
-    /** Ideal for very small non-touch screen devices (e.g. Waveshare S3 LCD 1.3") */
-    UiDensityCompact,
-    /** Nothing was changed in the LVGL UI/UX */
-    UiDensityDefault
-} UiDensity;
-
-/** @deprecated use UiDensity */
-typedef enum {
-    UiScaleSmallest, // UiDensityCompact
-    UiScaleDefault // UiDensityDefault
-} UiScale;
-
-/**
- * @deprecated Use UiDensity
- * @return the UI scaling setting for this device.
- */
-UiScale tt_hal_configuration_get_ui_scale();
-
-/** @return the UI scaling setting for this device. */
-UiDensity tt_hal_configuration_get_ui_density();
-
-#ifdef __cplusplus
-}
-#endif