Add Framework UUID to PiFramework
Add test
Rename PiFrameworkShutdownHook to FrameworkShutdownHook
Create ServiceHandle
Create URL stream handler-related classes
Add support for builtin handlers in FrameworkUrlStreamHandlerFactory
Add support for wel-known builtin handlers package names to FrameworkUrlStreamHandlerFactory
Change life cycle of executor field in PiFramework
Change life cycle of shutdownHook field in PiFramework
Check state before async stop in PiFramework
Add initUrlHandlers method to PiFramework