Camp buildings for the Empire "Settle" order.

Save a build with a vanilla Structure Block (SAVE mode), then copy the .nbt file from
  <world>/generated/minecraft/structures/<name>.nbt
into this folder. Every .nbt here is built by settling units, block by block, in
file-name order (prefix with 01_, 02_ ... to control the order). Beds inside become homes.

No .nbt files here = a built-in 7x7 log cabin with two beds is used instead.
