fs.mitm: WIP LayeredFS impl (NOTE: UNUSABLE ATM)

Also greatly refactors libstratosphere, and does a lot of other things.
There is a lot of code in this one.

stratosphere/fs_mitm/source/imitmserviceobject.hpp

@@ -1,16 +1,25 @@
 #pragma once
 #include <switch.h>
+#include <atomic>
 
 #include <stratosphere.hpp>
 
+#include "debug.hpp"
+
 class IMitMServiceObject : public IServiceObject {
     protected:
         Service *forward_service;
+        u64 process_id;
+        u64 title_id;
     public:
-        IMitMServiceObject(Service *s) : forward_service(s) {
+        IMitMServiceObject(Service *s) : forward_service(s), process_id(0), title_id(0) {
             
         }
         
+        static bool should_mitm(u64 pid, u64 tid) {
+            return true;
+        }
+                
         virtual void clone_to(void *o) = 0;
     protected:
         virtual ~IMitMServiceObject() { }