Support doors and trapdoors from mods

[mruncreative]

Removed hardcoded door names and instead now use the API of the door mod to meseconify all doors and trapdoors that have been registered after the mods are finished loading.

[mruncreative]

I tested it with the sakura door from ethereal ng. At first I was angry that ethereal ng door didn't work with mesecons and thought they were lazy goodfornothings but then I looked at the code and it uses the door mod and mesecon patches those doors, so it should work, but only for hardcoded values rather than using the api. So I made this fix to automatically support all doors ever made and going to be made.

[Niklp09]

Thanks for adding this here!

This makes mesecons integration in some mods obsolete, notably

• homedecor (mt-mods)
• mydoors (minetest-mods)
• xdecor_libre (Wuzzy)