Also removing some prefixes that we don't need now that we're using enum classes instead of plain enums.
The original reason I wanted to do this was so that we can replace the Android-specific code with this in the future, but of course, just deduplicating between DolphinWX and DolphinQt2 is nice too. Fixes: - DolphinQt2 showing the wrong size for split WBFS disc images. - DolphinQt2 being case sensitive when checking if a file is a DOL/ELF. - DolphinQt2 not detecting when a Wii banner has become available after the game list cache was created. Removes: - DolphinWX's ability to load PNGs as custom banners. But it was already rather broken (see https://bugs.dolphin-emu.org/issues/10365 and https://bugs.dolphin-emu.org/issues/10366). The reason I removed this was because PNG decoding relied on wx code and we don't have any good non-wx/Qt code for loading PNG files right now (let's not use SOIL), but we should be able to use libpng directly to implement PNG loading in the future. - DolphinQt2's ability to ignore a cached game if the last modified time differs. We currently don't have a non-wx/Qt way to get the time.
Add a way to easily get the title ID of a game. For Wii titles, it's sometimes more useful to know than the game ID.
These prefixes were inconsistent with the rest of Dolphin. I'm also renaming VolumeWiiCrypted to VolumeWii because of 1113b13.
Normal users don't care about it. In fact, people care so little about it that the Wii implementation of it was broken starting from when it was implemented (eb65601) to 7 years later (e0a47c1), apparently without anyone reporting it.
By removing mutable state in VolumeWiiCrypted, this change makes partition-related code simpler. It also gets rid of other ugly things, like ISOProperties's "over 9000" loop that creates a list of partitions by trying possible combinations, and DiscScrubber's volume swapping that recreates the entire volume when it needs to change partition.
We already have a TMDReader, so let's actually use it. And move ESFormats to IOS::ES, since it's definitely part of IOS. This adds a DiscIO dependency on Core which will be fixed in a follow-up PR.