Add extension https://github.com/neintoes/arcade-tile-data

Fixes #147

Author: UnsignedArduino

content/extensions/071-neintoes---arcade-tile-data.md

@@ -0,0 +1,9 @@
+---
+repo: "https://github.com/neintoes/arcade-tile-data"
+links:
+  - title: Forum post
+    url: >-
+      https://forum.makecode.com/t/arcade-tile-data-extension-for-storing-vars-sprites-on-tile-locations/29426?u=unsignedarduino
+---
+
+Like the sprite data extension, this super-helpful "tile data" extension allows you to store data such as strings, numbers, booleans, etc. to locations in a tilemap. It adds a `Data` section to the `Scene` category.