Added baseline for Tile Editor

This will be an actual utility for use in live instances, it will
basically be a list with Add, Edit, and Delete options for Tiles in a
TileIndex. (This will be useful as the game develops and new Tiles
needed to render things)

examples/tile_editor.rs

@@ -0,0 +1,4 @@
+
+fn main() -> Result<(), anyhow::Error> {
+    Ok(())
+}