Merge develop into main (#343)

- Refactor `AppManifest`: add new fields and rename existing ones
- Parse and validate the manifest from an app that is being installed.
- Remove deprecated `scoped()` from `Lock`
- Create `Tactility/Paths.h`
- App loading at boot now properly parses the manifest files of external apps
- Properly lock both source and destination locations during app install
- Remove LVGL path variants from `AppPaths` and `ServicePaths`
- Removed `xPath` base classes for apps and services. There's now `AppPaths` and `ServicePaths`.
- Renamed app and service paths: "data" and "system" paths are now "user data" and "assets"

TactilityCore/Source/Lock.cpp

@@ -2,10 +2,6 @@
 
 namespace tt {
 
-std::unique_ptr<ScopedLock> Lock::scoped() const {
-    return std::make_unique<ScopedLock>(*this);
-}
-
 ScopedLock Lock::asScopedLock() const {
     return ScopedLock(*this);
 }