package/x11r7/xserver_xorg-server: add sysv init script

package/x11r7/xserver_xorg-server: add sysv init script

We need ":0.0 vt01" to make sure Xorg finds the correct terminal.

Quoting https://www.x.org/archive/X11R6.8.0/doc/Xorg.1.html

-allowMouseOpenFail
    Allow the server to start up even if the mouse device can't be
    opened or initialised.

We need this option in case BR2_PACKAGE_XDRIVER_XF86_INPUT_MOUSE was
not enabled.

-noreset
    prevents a server reset when the last client connection is closed.

We need this option to prevent auto-close of Xorg.

Tested with a qemu image and Kodi.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[Arnout: copy an abbreviate version of the explanation above to the
         script.]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>