This replaces a lot of the functionality in require by moving
it to module/find. module/native-paths and module/image-paths are also
merged into the one module/paths to make it easier to extend. This of
course breaks some of the less important API - module/native-paths no
longer exists.
Images are precompiled libraries. They can be created programmatically
via the `write-image` function and then loaded with `require` or
`import`. They can also be run by the command line tool - you must
specify the path to the image without the .jimage extension.
