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/chat/ChatApp.cpp

@@ -5,7 +5,6 @@
 #include <Tactility/Assets.h>
 #include <Tactility/service/espnow/EspNow.h>
 
-#include "Tactility/service/gui/Gui.h"
 #include "Tactility/lvgl/LvglSync.h"
 
 #include <cstdio>
@@ -16,7 +15,7 @@
 namespace tt::app::chat {
 
 constexpr const char* TAG = "ChatApp";
-constexpr const uint8_t BROADCAST_ADDRESS[ESP_NOW_ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+constexpr uint8_t BROADCAST_ADDRESS[ESP_NOW_ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
 
 class ChatApp : public App {
 
@@ -154,7 +153,6 @@ public:
         lv_obj_set_height(input_field, LV_PCT(100));
         lv_textarea_set_placeholder_text(input_field, "Type a message...");
         lv_textarea_set_one_line(input_field, true);
-        service::gui::keyboardAddTextArea(input_field);
 
         // Send button
         auto* send_btn = lv_btn_create(input_panel);