With these changes, saveslots will be labeled as either empty or
with the date that the file was last updated on. The menu items
for loading them are also disabled if the slot is empty.
It's possible if you are very fast to access the menu before the
slots change. It updates when the crc changes. When you save a saveslot,
the menu item also changes to show the time you told it to save until the
file is actually done saving.
Also fix an issue with backup saveslots not working properly from the
gui on first load.
patches and cheats are exactly the same (pnach style patch line) but we
stored two sets of them depending on their source: "patches" for
GameIndex.dbf patches, and "cheats" for all the rest (cheats, widescreen,
etc).
Unify patches and cheats and keep only "patches", cleanup and rename the
public API at Patch.h, and add documentation.
Also: add some console messages on invalid "place" value, and when we skip
searching cheats_ws.zip because a pnach file was found at cheats_ws dir.
Also: removed checks before applying different kinds of patches/cheats
because we don't need them (we didn't have disabled patches loaded anyway).
The checks removal _shouldn't_ have any effect, except that the checks were
wrong and accidentally prevented loading widescreen hacks which have a place
value of 0. No one probably noticed it since all the widescreen patches
which I looked at have a place value of 1. So now ws patches with place=0
would load correctly too. If we'll ever have such.
This commit doesn't change any behavior, but documents the "places" value
of the patch structure ("place" is 1 in patch=1,... and 0 in patch=0,...)
and also uses an enum to make its use explicit.
