- Add building addon database schema
- Add addon modifiers and requires schema
- Change weapon-entity many-to-many tables unique keys (same weapon can be in different hardpoint or positions, so unique key is unit+weapon+hardpoint+pozition)
- Add building rgd extract service
- Add building addons rgd extract service
- Add weapon min radius, damage radius, min-max throw force
- Fix bug, when same weapon not show in different slots
