Touch and display driver subsystems reworked (and more) (#302)

- Refactored `TouchDevice`: it can now start/stop LVGL separately, and it has an optional `TouchDriver` interface
- Refactored `DisplayDevice`: it can now start/stop LVGL separately, and it has an optional `DisplayDriver` interface
- Updated all boards and drivers for above changes
- LVGL can now be stopped and (re)started on the fly
- Fixed issues with restarting Gui and Statusbar services
- Refactored `Gui` service to be class and renamed `Gui` to `GuiService`
- Fixed `Statusbar` service: forgot to deregister one of the icons
- Updated `esp_lcd_st7701` to v1.1.3
- `lv_textarea_create()` now automatically registers the hardware keyboard hooks (by wrapping the function)
- Fixed and updated `tactility.py`
- Cleanup of a lot of code
- `BootInitLvglBegin` and `BootInitLvglEnd` are replaced by `LvglStarted` and `LvglStopped`.
- Introduced `tt::service::State` which is accessible via `tt::service::getState()` (and internally via `ServiceInstance`)
- Started replacing `#define TAG` with `constexpr auto TAG = "..";`

Tactility/Source/app/fileselection/View.cpp

@@ -10,7 +10,6 @@
 
 #include <cstring>
 #include <unistd.h>
-#include <Tactility/service/gui/Gui.h>
 
 #ifdef ESP_PLATFORM
 #include "Tactility/service/loader/Loader.h"
@@ -200,7 +199,6 @@ void View::init(lv_obj_t* parent, Mode mode) {
     path_textarea = lv_textarea_create(bottom_wrapper);
     lv_textarea_set_one_line(path_textarea, true);
     lv_obj_set_flex_grow(path_textarea, 1);
-    service::gui::keyboardAddTextArea(path_textarea);
     lv_obj_add_event_cb(path_textarea, onPathTextChanged, LV_EVENT_VALUE_CHANGED, this);
 
     select_button = lv_button_create(bottom_wrapper);