[Kernel/APT] Stub some APT and threading stuff to make OoT go further

include/kernel/kernel.hpp

@@ -103,11 +103,13 @@ class Kernel {
 	void getResourceLimitCurrentValues();
 	void getSystemTick();
 	void getThreadID();
+	void releaseMutex();
 	void sendSyncRequest();
 	void svcCloseHandle();
 	void connectToPort();
 	void outputDebugString();
 	void waitSynchronization1();
+	void waitSynchronizationN();
 
 	// File operations
 	void handleFileOperation(u32 messagePointer, Handle file);

include/services/apt.hpp

@@ -12,6 +12,8 @@ class APTService {
 	// Service commands
 	void getLockHandle(u32 messagePointer);
 	void checkNew3DS(u32 messagePointer);
+	void enable(u32 messagePointer);
+	void notifyToWait(u32 messagePointer);
 
 public:
 	APTService(Memory& mem) : mem(mem) {}