kernel: Improvements to process cleanup. (#6680)

* kernel: Properly clean up process threads on exit.

* kernel: Track process-owned memory and free on destruction.

* apt: Implement DoApplicationJump via home menu when available.

* kernel: Move TLS allocation management to owning process.

src/core/hle/kernel/thread.h

@@ -111,6 +111,11 @@ public:
      */
     void ExitCurrentThread();
 
+    /**
+     * Terminates all threads belonging to a specific process.
+     */
+    void TerminateProcessThreads(std::shared_ptr<Process> process);
+
     /**
      * Get a const reference to the thread list for debug use
      */