[Feature Request] Store a `__` property for overlapping world layer neighbors

[spindlebink]

My single favorite feature in LDtk is the way it handles worlds and levels. Automating neighbor connections in a Metroidvania-style game is a cinch with the __neighbors table.

My request is for a similar __overlappingNeighbors or a similar property name associated with the neighbors that overlap in world space. Since world layers are a feature enabling stacking levels on top of each other for the purpose of, say, making rooms or tunnels that a player can enter, it seems like a good idea to give levels information about which other levels it overlaps with.

[deepnight]

Good idea :) Thanks for the suggestion.

[deepnight]

Done in 1.3.5