Merge develop into main (#304)

## New

- Read property files with `PropertiesFile`
- Support `boot.properties` so the user can specify the launcher app and an optional app to start after the launcher finishes. (see `BootProperties.cpp`)
- Create registry for CPU affinity and update code to make use of it
- `AppRegistration` and `ServiceRegistration` now also ensure that the `/data` directories always exist for all apps
- `Notes` is now the default app for opening text files. `TextViewer` is removed entirely. Created `tt::app::notes::start(path)` function.
- WiFi settings moved from NVS to properties file.
- Specify `*.ap.properties` file on the SD card for automatic WiFi settings import on start-up.
- Added `file::getLock(path)` and `file::withLock(path, function)` to do safe file operations on SD cards

## Improvements

- Update TinyUSB to `1.7.6~1`
- Improved `Boot.cpp` code. General code quality fixes and some restructuring to improve readability.
- `tt::string` functionality improvements
- Rename `AppRegistry` to `AppRegistration`
- Rename `ServiceRegistry` to `ServiceRegistration`
- Cleanup in `Notes.cpp`
- `FileTest.cpp` fix for PC
- Created `TestFile` helper class for tests, which automatically deletes files after the test.
- Renamed `Partitions.h` to `MountPoints.h`
- Created `std::string getMountPoints()` function for easy re-use
- Other code quality improvements
- `SdCardDevice`'s `getState()` and `isMounted()` now have a timeout argument

## Fixes

- ELF loading now has a lock so to avoid a bug when 2 ELF apps are loaded in parallel

Tactility/Source/app/AppRegistration.cpp

@@ -0,0 +1,53 @@
+#include "Tactility/app/AppRegistration.h"
+#include "Tactility/app/AppManifest.h"
+
+#include <Tactility/Mutex.h>
+
+#include <unordered_map>
+#include <Tactility/file/File.h>
+
+#define TAG "app"
+
+namespace tt::app {
+
+typedef std::unordered_map<std::string, std::shared_ptr<AppManifest>> AppManifestMap;
+
+static AppManifestMap app_manifest_map;
+static Mutex hash_mutex(Mutex::Type::Normal);
+
+void addApp(const AppManifest& manifest) {
+    TT_LOG_I(TAG, "Registering manifest %s", manifest.id.c_str());
+
+    hash_mutex.lock();
+
+    if (!app_manifest_map.contains(manifest.id)) {
+        app_manifest_map[manifest.id] = std::make_shared<AppManifest>(manifest);
+    } else {
+        TT_LOG_E(TAG, "App id in use: %s", manifest.id.c_str());
+    }
+
+    hash_mutex.unlock();
+}
+
+_Nullable std::shared_ptr<AppManifest> findAppById(const std::string& id) {
+    hash_mutex.lock();
+    auto result = app_manifest_map.find(id);
+    hash_mutex.unlock();
+    if (result != app_manifest_map.end()) {
+        return result->second;
+    } else {
+        return nullptr;
+    }
+}
+
+std::vector<std::shared_ptr<AppManifest>> getApps() {
+    std::vector<std::shared_ptr<AppManifest>> manifests;
+    hash_mutex.lock();
+    for (const auto& item: app_manifest_map) {
+        manifests.push_back(item.second);
+    }
+    hash_mutex.unlock();
+    return manifests;
+}
+
+} // namespace