GPS refactored (#262)

- Refactored GPS service and HAL: GPS is no longer part of the HAL configuration. You can now add configure new GPS devices from the GPS settings app.
- T-Deck adds a boot hook to check if a GPS configuration exists and adds it when the config is empty.
- Implemented the concept of ObjectFile to read/write arrays of a raw data type (e.g. struct) to disk.
- Implemented more file utils (e.g. to create all directories of a path)

Tactility/Source/Tactility.cpp

@@ -30,6 +30,7 @@ namespace service {
 // region Default apps
 
 namespace app {
+    namespace addgps { extern const AppManifest manifest; }
     namespace alertdialog { extern const AppManifest manifest; }
     namespace applist { extern const AppManifest manifest; }
     namespace chat { extern const AppManifest manifest; }
@@ -70,6 +71,7 @@ namespace app {
 // endregion
 
 static void registerSystemApps() {
+    addApp(app::addgps::manifest);
     addApp(app::alertdialog::manifest);
     addApp(app::applist::manifest);
     addApp(app::display::manifest);