Add unit test script for windows

run_unit_tests_win.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+successes=0
+failures=0
+
+echo -n "Running unit tests"
+for file in unittests/*.chai
+do
+  tstname=${file%.*}
+	tst="$tstname.txt"
+	./chaiscript_eval $file > /tmp/tstout.txt
+        cat $tst > /tmp/tstmaster.txt
+        awk 'sub("$", "\r")' $tst > /tmp/tstmaster.txt
+	diff /tmp/tstmaster.txt /tmp/tstout.txt
+	if [ "$?" -eq "0" ]
+	then
+		echo -n "."
+		successes=$((successes+1))
+	else
+		echo "[from failed test $file]"
+		failures=$((failures+1))
+	fi
+done
+echo ""
+
+total=$((successes+failures))
+echo "$successes out of $total succeeded"