Moved legacy code into archive, ready for a new rapid(?) prototype.

I may regret doing this!

unit-tests/bignum.sh

@@ -1,18 +0,0 @@
-#!/bin/bash
-
-return=0
-
-expected='1,152,921,504,606,846,976'
-# 1,152,921,504,606,846,975 is the largest single cell positive integer;
-# consequently 1,152,921,504,606,846,976 is the first two cell positive integer.
-actual=`echo '(+ 1,152,921,504,606,846,975 1)' | target/psse -v 68 2>bignum.log | tail -1`
-
-if [ "${expected}" = "${actual}" ]
-then
-    echo "OK"
-else
-    echo "$0 => Fail: expected '${expected}', got '${actual}'"
-    return=1
-fi
-
-exit ${return}