Create an "Other" category for ScreenHowToPlay steps.sm, and other

files that don't really go anywhere else.

stepmania/Themes/default/Other/ScreenHowToPlay steps.sm

@@ -0,0 +1,90 @@
+// these steps are only used by the How To Play screen.
+// you can use any difficuly here, as long as there is
+// only one set of steps in the file. the steps start
+// as soon as the screen comes up. also, the music used
+// is Sounds/ScreenHowToPlay Music, so no need to specify
+// a song file here.
+#TITLE:ScreenHowToPlay steps;
+#ARTIST:foo;
+#BPMS:0.000=100.000
+#STOPS:16=2,18=2,20=2,22=2;
+
+#NOTES:
+	dance-single:
+	BASIC:
+	easy:
+	1:
+	0,0,0,0,0:
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+,;