Store arbitrary data in TileMap Cells

[eonarheim]

Context

When building TileMaps for a game, it is often useful to have information associated with specific tiles.

Proposal

Implement a mechanism for storing arbitrary data in TileMap Cells

Possibly something simple as a data Map like

export class Cell {
    data = new Map<string, any>();
}

[github-actions]

This issue hasn't had any recent activity lately and is being marked as stale automatically.