Hardware preparations for LASER world of photonics

[doomke]

We need to prepare the hardware for the network conditions at the fair:

• set up test environment with WiFi (hopefully) identical to fair conditions
• ensure all components work as intended
• prepare components for shipping

So far the following problems were observed during testing and need to be addressed:

• restricted internet access possibly rendering time synchronization impossible #118
• overview cam rested on a glass surface before, needs new holder/stand/positioning