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In order to support the use case where the user gets back the last setting of the devices (e.g. level settings for lamps),
a global scene is introduced which is stored when the devices are turned off and recalled when the devices are turned
on.
The global scene is defined as the scene that is stored with group identifier 0 and scene identifier 0.
The GlobalSceneControl attribute is defined in order to prevent a second off command storing the all-devices-off
situation as a global scene, and to prevent a second on command destroying the current settings by going back to the
global scene.
The GlobalSceneControl attribute SHALL be set to TRUE after the reception of a command which causes the OnOff
attribute to be set to TRUE, such as a standard On command, a Move to level (with on/off) command, a Recall scene
command or a On with recall global scene command (see Section 3.8.2.3.5).
The GlobalSceneControl attribute is set to FALSE after reception of a Off with effect command