Add StepMania installer script

Author: AgenttiX

games/stepmania/install_stepmania.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env sh
+set -eu
+
+# This script configures StepMania dependencies for Ubuntu.
+
+# Download StepMania here:
+# https://www.stepmania.com/download/
+
+# Songs
+# https://search.stepmaniaonline.net/
+
+# This PPA does not work on Ubuntu 24.10,
+# as it contains dependencies to old packages.
+# https://launchpad.net/~ubuntuhandbook1/+archive/ubuntu/stepmania
+
+# https://www.reddit.com/r/Stepmania/comments/bkmy8q/stepmania_isnt_opening_on_linux/
+# https://www.codeweavers.com/support/forums/general/?t=26;mhl=149152;msg=149152
+sudo apt-get install libjpeg62 libpcre3
+
+# https://github.com/stepmania/stepmania/issues/2186#issuecomment-1079837345
+sudo ln -s "/lib/x86_64-linux-gnu/libva.so.2" "/lib/x86_64-linux-gnu/libva.so.1"