Support conversion of binary files to several formats useful for analysis

[lucabaldini]

This is another massive pull request that I originally intended to propose for the merge after #3 is merged.

I think we are at a point where the stuff is ready for beta test. The new data format is in a reasonable state and documented, and we do have scripts to:

• write data in binary format;
• decode a binary file and save the hits in a variety of formats, including csv, fits, and hdf5;
• playback a binary file and pretty-print the readouts, to debug the decoding;
• convert a .log file to a .apx file so that all of the above can happen on the old stuff too.

Also: this pull requests adds two more dependencies: astropy and h5py

[DanViolette]

I've gone ahead and merged in the last two pull requests, @grant-sommer I'd like to start parsing through this one with you and confirm it works as expected!

Cheers,
Dan

[lucabaldini]

I am gonna go ahead and merge the main into this branch, and drop a line to Grant when this is ready to be looked!

Thanks Dan, and hold on a second before you jump onto this one, Grant :-)