define bitwise types and annotate conversion routines

This lays the groundwork for sparse-checking e2fsprogs for
endianness; defines bitwise types, and fixes up the ext2fs_*
swapping routines to do the proper casts.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
5 files changed