[FS] Done with CreateFile

include/services/fs.hpp

@@ -53,4 +53,6 @@ public:
 	
 	void reset();
 	void handleSyncRequest(u32 messagePointer);
+	// Creates directories for NAND, ExtSaveData, etc if they don't already exist. Should be executed after loading a new ROM.
+	void initializeFilesystem();
 };

include/services/service_manager.hpp

@@ -60,6 +60,7 @@ class ServiceManager {
 public:
 	ServiceManager(std::array<u32, 16>& regs, Memory& mem, GPU& gpu, u32& currentPID, Kernel& kernel);
 	void reset();
+	void initializeFS() { fs.initializeFilesystem(); }
 	void handleSyncRequest(u32 messagePointer);
 
 	// Forward a SendSyncRequest IPC message to the service with the respective handle