Add support for self-extract exe files

[raulfraile]

It would be interesting to support the decompression of exe files using some Windows command line tools such as 7zip (and probably many others). To fix this issue, #6 must be done first.

How to fix it

A new format should be added to the Distill\Format namespace. Compression ratio, speed... should be the same as the Zip format. This command must also be added to the container, as explained in #6.

For tests, if there is any way to create them from Linux/MacOS, it can be added to the generate_files.sh script.