Replaced with piano song

- Replaced with the piano melody with an song find in typical RPGs.
- New Remove Pants/Shirt buttons
- About window was redone with the license moved to it's own dedicated window that now includes CC-BY 4.0 notice as well.
- New assets: blue camo pants and the shirt from the cancelled "What's New Zack?"
- The Zack sprite was modified to work with the new shirt. This doesn't affact older ones, though.

project/music/song.ogg.import

@@ -0,0 +1,15 @@
+[remap]
+
+importer="ogg_vorbis"
+type="AudioStreamOGGVorbis"
+path="res://.import/song.ogg-e028209760e5df62f8d96269815a3497.oggstr"
+
+[deps]
+
+source_file="res://music/song.ogg"
+dest_files=[ "res://.import/song.ogg-e028209760e5df62f8d96269815a3497.oggstr" ]
+
+[params]
+
+loop=true
+loop_offset=0