* Placed C++ extern "C" blocks inside include guards.
* Added a "clean_all" rule to the Makefile to avoid recompiling libusbhsfs after each time "clean" is used.
* Added static asserts for all structs that may need it throughout the code.
* Preprocessor macros are now used to generate certificate and ticket structs.
* Added functions to deal with title info and application metadata reallocations, greatly reducing the number of references to realloc() throughout the code.
* Tweaked gamecardGetHashFileSystemContext() to not return a pointer to a dynamic context.
* Added a type field to Hash FS contexts.
* Ported the logfile handler from libusbhsfs, with some slight modifications.
* Rewrote hash file system handling from scratch. I had been wanting to do this for some months now, it's a lot better now.
* Code cleanup.
