Have example/crc32 use WUFFS_CONFIG__MODULES
Have example/crc32 use WUFFS_CONFIG__MODULES

Compile time:
$ time ./build-example.sh example/crc32
Before: user 10.637s
After:  user  1.314s

Binary size:
$ ls -l gen/bin/example-crc32 | awk '{print $5}'
Before: 344744
After:   37112

google/wuffs,google/wuffs,google/wuffs,google/wuffs,google/wuffs