Twemoji-based clothes

- New Emoji-based shirts based on Twemoji because the idea sounded fun. Credits will eventually be added in-game but for now it's in the README.
- For the time being, a few of the ZC's Dress Up-era shirts have pulled because they were never properly ported over during the remaster.
- The train sweater had it's track logo replaced with the train emoji.
- Removed PNG clothing sprites.
- Version label.

sprites/clothes/skate_shirt.svg.import

@@ -0,0 +1,34 @@
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+path="res://.import/skate_shirt.svg-f6dd325cc91a89a1f7a63cf7771a25ab.stex"
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+}
+
+[deps]
+
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+dest_files=[ "res://.import/skate_shirt.svg-f6dd325cc91a89a1f7a63cf7771a25ab.stex" ]
+
+[params]
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