Add more heuristics to item matching

[jedmund]

$g until io grand lf -> works
$g until danua halloween halloween -> works
$g until dark cagliostro -> works
$g until summer zeta -> doesn't work

The current heuristics allow you to omit parentheses, proper capitalization, and flip elements, but you cannot flip suffixes like "Grand", "Summer", etc.

$g until danua halloween -> works

This doesn't do what a user expects, but it does do the logical thing. It treats halloween as the season and looks for Danua, of which there are two versions: her SR and her Light SSR.

In the fuzzy matching future, Danua's Halloween version will show up as an option as well, which is probably what the user intended.