Added simple script that makes all challenges trivial

(0 laps, no time or energy limit).

tools/simplify_challenges.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# This script simplifies all challenges by removing any time 
+# limit, position requirement, etc, and setting the number
+# of laps to 0. This is meant to quickly test the story
+# mode without having to fully play all challenges.
+
+for i in data/challenges/*.challenge; do
+    echo "Simplifying $i"
+    cat $i | sed 's/position="[0-9]*"/position="99"/' \
+           | sed 's/laps="[0-9]*"/laps="0"/'          \
+           | sed 's/energy="[0-9]*"/energy="0"/'      \
+           | sed 's/time="[0-9]*"/time="9999"/'       \
+    > $i.new
+    mv $i.new $i
+done
+
+for i in data/grandprix/*.grandprix; do
+    echo "Simplyfing GP $i"
+    cat $i | sed 's/laps="[0-9]*"/laps="0"/' > $i.new
+    mv $i.new $i
+done
+echo
+echo "All challenges simplified."
+echo "PLEASE do not commit the changes back to our repository!"
+echo "========================================================"
+