new program endpoint

I wanted to write some python for once 😄

I’ve deleted the entire program/playout endpoint in the first commit, so that it’s easier to see what I’ve actually implemented (see the second commit for that).

Feel free to use/re-use/edit/mangle/move-around this code at your convenience.

I haven’t put much thought into edge cases (I don’t even know if there are any). I do think that the generate_program_entries function is quite elegant. Also… generating only the necessary data in it and moving the data serialization complexity in the serializers is probably a good idea to keep maintenance low.

Have fun with it! I had some :)