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/service/ServiceRegistry.cpp

@@ -7,6 +7,7 @@
 
 #include <string>
 #include <unordered_map>
+#include <Tactility/app/AppInstance.h>
 
 namespace tt::service {
 
@@ -76,7 +77,9 @@ bool startService(const std::string& id) {
     service_instance_map[manifest->id] = service_instance;
     instance_mutex.unlock();
 
+    service_instance->setState(State::Starting);
     service_instance->getService()->onStart(*service_instance);
+    service_instance->setState(State::Started);
 
     TT_LOG_I(TAG, "Started %s", id.c_str());
 
@@ -96,11 +99,13 @@ bool stopService(const std::string& id) {
     TT_LOG_I(TAG, "Stopping %s", id.c_str());
     auto service_instance = findServiceInstanceById(id);
     if (service_instance == nullptr) {
-        TT_LOG_W(TAG, "service not running: %s", id.c_str());
+        TT_LOG_W(TAG, "Service not running: %s", id.c_str());
         return false;
     }
 
+    service_instance->setState(State::Stopping);
     service_instance->getService()->onStop(*service_instance);
+    service_instance->setState(State::Stopped);
 
     instance_mutex.lock();
     service_instance_map.erase(id);
@@ -115,4 +120,12 @@ bool stopService(const std::string& id) {
     return true;
 }
 
+State getState(const std::string& id) {
+    auto service_instance = findServiceInstanceById(id);
+    if (service_instance == nullptr) {
+        return State::Stopped;
+    }
+    return service_instance->getState();
+}
+
 } // namespace