[MISC] Update configure to support exported CC variable
[KERNEL] Fix various warnings
[USERLAND] Correct various warnings
[USERLAND][LIBFIU] Add generic block cache
[USERLAND][DRV] Ext2 now uses new fiu block cache
[KERNEL][VFS] Return EBADE in vfs_lookup if driver response is invalid
[KERNEL][VFS] Add fiu_lookup() implementation