C++ conversions (#111)

* Remove version from artifact name
* Target C++ 20 and higher
* Use cpp string
* Better crash implementation
* String utils in cpp style
* Replace parameter methods with start() method
* MutexType to Mutex::Type
* Kernel c to cpp style
* Cleanup event flag
* More cpp conversions
* Test fixes
* Updated ideas docs

Tactility/Private/app/AppInstance.h

@@ -37,7 +37,7 @@ class AppInstance : public AppContext {
 
 private:
 
-    Mutex mutex = Mutex(MutexTypeNormal);
+    Mutex mutex = Mutex(Mutex::TypeNormal);
     const AppManifest& manifest;
     State state = StateInitial;
     Flags flags = { .showStatusbar = true };

Tactility/Private/service/loader/Loader_i.h

@@ -143,7 +143,7 @@ struct Loader {
     std::shared_ptr<PubSub> pubsub_internal = std::make_shared<PubSub>();
     std::shared_ptr<PubSub> pubsub_external = std::make_shared<PubSub>();
     MessageQueue queue = MessageQueue(2, sizeof(LoaderMessage)); // 2 entries, so you can stop the current app while starting a new one without blocking
-    Mutex mutex = Mutex(MutexTypeRecursive);
+    Mutex mutex = Mutex(Mutex::TypeRecursive);
     std::stack<app::AppInstance*> app_stack;
 };