This PR adds animated tilesets! I spent the day working on these, and it wasn't easy. This is primarily to help animate the All-Stars' grass tiles. You should be able to animate the other tilesets as well, but I haven't tested them.
JSONs are provided in the assets for Conveyer Belts and Liquids. There's two ways to animate the tilesets. The first is by the traditional way as used by `AnimatedSprite2D`, and the other is by how Godot animates tilesets normally as seen with the conveyer belts and liquids.
The last thing is that while doing this, I actually managed to fix the Resource Pack bug where reloading also reloads the blocks! It was surprisingly straightforward. I just edited the `BlockClass.gd` file to erase the cells when a block is hit or destroyed.
Let me know if you have any suggestions for things I should change or fix.
* Just the Coin Sparkle stuff
FYI, if a property in the json is formatted like `exa.exb` then it reads `exa` as another object and `exb` as a property in `exa` assuming the root `property_node` contains this object.
Also primarily for Resource Packs to change how the particles work and should explain how I got there with my personal SMAS skin.
* Added Coin Sparkle Texture to Scene
Of course I broke it in some form.
* Update Mod Loader and Tool addons
* Mod tool checks if script exists before reloading
* Change script export mode to Text for hook export
* Change return type of load_image_from_path to Texture2D
This is a simple bugfix that allows the Title Screen music to loop. It also works with Resource Packs.
For the purposes of faithfulness, this fix is only needed for the Lost Levels title music to match the All-Stars counterpart.
