Tech update with new furnitures as lever or pressure plates that allows you to turn on and off electrical furnitures as plasma ball or retractable stone walls! - add tools durability, making them breakable - add plasma ball - add data wires - add pressure plates - add science poster - add lever - add electrical retractable wall - add programmation tool (for tech update part 2) - add save of data tag (for tech update part 2) - fix electrical light with animated sprite - first frame is not skipped - rework all furnitures with data (code cleaning & rework for faster implementation and less bugs) - fix item fast move key can be used to put something in the mailbox - add new items FR and EN translations - change wires max distance (3m -> 6m) - fix exception in Monitoring (data is now 100% thread-safe) - fix inventory not updated when using a wire - fix lights on town square is on even when the sun is rised - fix objects placement (can't place in some cases) - change coal generator productivity (x5) - add sfx for lever & pressureplates - add black board - add science machine - upgrade training center (more furnitures in this construction) - small fixes (5+)