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

Tactility/Source/lvgl/wrappers/button.cpp

@@ -1,9 +1,9 @@
 #ifdef ESP_PLATFORM
 
-#include <Tactility/Tactility.h>
-
 #include <lvgl.h>
 
+#include <tactility/lvgl_module.h>
+
 extern "C" {
 
 extern lv_obj_t* __real_lv_button_create(lv_obj_t* parent);
@@ -11,7 +11,7 @@ extern lv_obj_t* __real_lv_button_create(lv_obj_t* parent);
 lv_obj_t* __wrap_lv_button_create(lv_obj_t* parent) {
     auto button = __real_lv_button_create(parent);
 
-    if (tt::hal::getConfiguration()->uiDensity == tt::hal::UiDensity::Compact) {
+    if (lvgl_get_ui_density() == LVGL_UI_DENSITY_COMPACT) {
         lv_obj_set_style_pad_all(button, 2, LV_STATE_DEFAULT);
         lv_obj_set_style_radius(button, 3, LV_STATE_DEFAULT);
     }