Add custom pm sysmodule

sysmodules/pm/source/termination.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include "process_data.h"
+#include <3ds/exheader.h>
+
+Result listAndTerminateDependencies(ProcessData *process, ExHeader_Info *exheaderInfo);
+ProcessData *terminateAllProcesses(u32 callerPid, s64 timeout); // callerPid = -1 for firmlaunch
+
+Result TerminateApplication(s64 timeout);
+Result TerminateTitle(u64 titleId, s64 timeout);
+Result TerminateProcess(u32 pid, s64 timeout);
+Result PrepareForReboot(u32 pid, s64 timeout);