- Fixes#9543
- Removes ugly floodlight/proc/updateicon() and replaces it with proper floodlight/update_icon() which is standard on all objects/items. Does the same refactor for power cells and adjusts the proc call in relevant files (hence the amount of 1-line changes in various files)
- Makes floodlights properly use CELLRATE. Their load is 200 watts. Cell adjusted accordingly, it starts with 1k cell, which is enough for ~40 minutes (roughly)
- Floodlights with almost discharged cell (less than 10%) ocassionally "flicker", dimming for few seconds. This serves as indicator that the power cell is running low.
- Floodlight luminosity adjusted. They now shine slightly more, espicially closer to the floodlight.