replace ad hoc driver loading with a proper driver manager, new DDK, new PnP manager with device matching, asynchronous startup, resource ownership and removal, add shared PCI capability helpers, replace typed, rigid services with a proper service manager, implement proper system shutdown and restart, shutting down unloads drivers and shuts down services, add simple power button, remove heavyweight boot self-tests and SMP stress runs, add monotonic timestamps to kernel debug output, fruitless USB and PS/2 fixes, make test builds opt in.

code/user/syscall/syscall_nr.inc

@@ -186,4 +186,9 @@ SYS_SET_SOCKET_OPTION        EQU 159
 SYS_GET_SOCKET_OPTION        EQU 160
 SYS_POLL                     EQU 161
 
-SYS_MAX EQU 162
+SYS_OPEN_POWER_EVENT         EQU 162
+SYS_REQUEST_SYSTEM_POWER     EQU 163
+SYS_QUERY_SYSTEM_POWER       EQU 164
+SYS_COMPLETE_SYSTEM_POWER    EQU 165
+
+SYS_MAX EQU 166