Add SERVICE_PKG_SERVICE service type

[kkent030315]

Added SERVICE_PKG_SERVICE type in windows_service::service. The service type indicates that the service is packaged Win32 own service installed by packaging tools like MSIX.

This is defined in winnt.h:

#define SERVICE_PKG_SERVICE            0x00000200

#define SERVICE_TYPE_ALL               (SERVICE_WIN32  | \
                                        SERVICE_ADAPTER | \
                                        SERVICE_DRIVER  | \
                                        SERVICE_INTERACTIVE_PROCESS | \
                                        SERVICE_USER_SERVICE | \
                                        SERVICE_USERSERVICE_INSTANCE | \
                                        SERVICE_PKG_SERVICE)

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This change is