These are giant dependencies that for some reason pull in winapi(???)
and we actually don't need all of their features.
Criterion can be replaced with brunch, a minimalist alternative.
walkdir is replaced with a single function.
system-dep can be replaced with a single line. Eventually I would like
to make it a little bit more than one line, but that's all we need for
now.
So we had a couple copies of a Platform enum, so now there's a public
one in the common module. It wasn't possible to specify what platform
the GameData is, so now it's part of initialization. While I'm at it,
remove the stupid reload_repositories() requirement and make that a
private part of the API.
Before this change, if you wanted to include physis you had to include
a bunch of dependencies you didn't need. For example, a launcher would
have to pull in texpresso which is completely useless. By default,
the features from before (excluding game_install) are included.
Also this creates a game_install feature for eventual Windows builds,
where unshield is not supported.
Currently only the first two game patches are checked, eventually want
to check boot patching as well. Hopefully this should weed out the
remaining patching issues I encounter.
