Add additional descriptions of the device
Implements #45
Summery of discussion: The distance need more definition, as it is not clear what they actually do and how do we define this. Laser, CO2 Cannon, Pyro: Do they need this as well.
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Robe defined data: Min. distance from flammable materials: 1 m is a required information about distance from flammable materials based on surface temperature of the fixture's housing. This is defined in EN IEC 60598-2-17 part 2-17, section 17.6.4 - minimal distance from flammable materials of all outer surfaces of the device.
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Robe defined data: Min. distance of illuminated objects: 18 m is a required information about distance on which the fixture could make illuminated surface warmer then 90°. This is defined in EN IEC 60598-1, part 1, section 3.2.13. Often accommodated by this picture: