Attach points in sprite editor dialog

[iampremo]

Ticket #207608

Feature Type: feat_addition_ide Description: Please implement several attachment points and directions for each sprite (for each animation frame) in the interface of the sprite editor and the code that allows you to get this data. Thanks. Benefit: I would be able to add the coordinates and direction of the weapon, the drop point of the sleeve, etc. Doing it manually (or redoing it after editing sprites) is a terrible job. Link:

[KeeVeeGames]

Duplicate YoYoGames/GameMaker-Bugs#4296

[Alphish]

@rwkay It's a duplicate.