- Setup modules to load different classes for different Bukkit/Spigot versions
- Create BukkitHandler to get/set the sign facing and get the block it is attached to
- Fix `/as addsign` to use new sign methods
- Fix sign updates to use new sign methods
- Implement full forwards and backwards compatibility of the saved sign material type
- On Bukkit 1.12 and lower all special wood types are translated to the standard sign
- On Bukkit 1.13 the internal sign name is translated (and special wood types to the standard one)
- On Bukkit 1.14 the signs of 1.13- are translated to the OAK variants
- Cleanup the .gitignore files inside of the module folders
