-- zipFS has several limitations...
--- in a general way, seekg doesn't work... so getting a file's size needs to be done through JFileSystem.
--- getLine on files open with zipFS doesn't work so great. Not sure if it is a normal issue because files are open in binary or not... JFileSystem therefore offers a "readIntoString" function that needs to be used instead of the usual "getline" technique. However getLine can then be used on a stream connected to the string.
-- tested on Windows and PSP, I also made sure android still works, but haven't tested zip support on Android.
-- I tried to maintain backwards compatibility, but this might break on some platforms, if I broke some platforms and you can't find a way to fix them, please contact me and we'll figure something out
-- This removes wagic::ifstream. I didn't reimplement the securities that were involved in this, apologies for that. Might be useful to reimplement such securities in JFileSystem
-- I haven't tested options/profiles in a deep way, it is possible I broke that.
1) Consolidated the Loggers so that we only have one in JGE. Added a helper constructor/destructor to the JLogger class so that you can instantiate one at the top of a function, it'll trace out a 'start' and 'end' message when it goes in & out of scope.
2) Fixed the crash part of a bug I've been chasing down where, on the psp, after saturating the cache, the game dies when trying to reload the background PNG image of the deck menu. We still need to fix the root cause of the failure (not enough memory to allocate a temporary buffer for the swizzle operation), but at least the psp doesn't lock up anymore. I've also left behind all the log traces I inserted into the LoadPNG code, since we'll probably need them again.
