Added random testing, all indco/hidden for random types
Added errors and colour code path based on success
Corrected inv verification for more 'hidden' issues

There were even more cases where the hidden slope matrix was verifying as
correct, but was in fact invalid. These have now been fixed.
Further stylisation for easier viewing

I've added the VS log to the bottom of the page as well as marking all the "own
values" in the current element values (bold) as well as the minimum of the output
basis elements values (underlined).