Using odo for generic binary files

Would it make sense to be able to use odo for generic binary files?

For example, suppose I have some generic file sitting on S3. It would be nice to be able to download it with `odo('s3://my-bucket/my-file', 'local-file')`. Currently, this only works if the source file is something odo recognizes.

related: https://github.com/blaze/odo/issues/326

Start at the odo(...) conversion entry point and inspect how an S3 source is dispatched when its type is unrecognized. Read related issue #326 for context. Done means a generic binary object can be downloaded from S3 to a local path without requiring odo to recognize its format.

Written by the indexing model from the issue text.