Batch replace Tilemap for Asprite

This Lua script, designed for use in the Aseprite software, enables the batch search and replacement of specific elements within a sprite sheet. With just one click, it replaces the elements selected by the user. Once the user selects a part of the sprite sheet and makes modifications, the script will uniformly replace all elements that are identical to the selected one, as well as those that are rotated by 90 degrees, 180 degrees, 270 degrees, and those that are horizontally and vertically mirrored. This significantly boosts efficiency, sparing users from having to make manual changes element by element, and effectively implements a powerful find-and-replace function within the sprite sheet images.