Add staircase detection method, for basic staircases. Ability to detect the bottom, middle and top nodes. Useful for future implementation of being able to use 2nd floors.
Added NPC actions so that it now closes doors after opening them.
Fixed rotations for opening/closing doors and for reaching the goal point.
Added full support to cottages mod gates and half doors.
WIP: Support for cottages beds and sleeping mats.
Pathfinding: Adds functions that allows to map the Minetest 3D map to a 2D array to use by the pathfinding algorithm.
Actions: Use new code for find_path function. Improves door opening while walking on paths, and also now close them. Cottages fence gates and doors are also now supported in addition to the default doors and gates.
Changes to the Readme and the License.
Places: Added functions for adding and getting places, and for finding places of specific types. Added beds, chairs and chest as places.
NPC: Added places map and action queue.
