Read hdf5 files generated by bioread

[oesteban]

The ability to read hdf5 would permit a better alternative to txt files, which is the easiest way of running phys2bids when you need to operate over the channels.

Detailed Description

Context / Motivation

Using hdf5 as interface would allow faster implementation of new formats.

Possible Implementation

Investing in sniffing the input file and trying to assign the best reader (a la nibabel) would be great.

[smoia]

We use bioread (this bioread) to read in biopac files already, I don't necessarily get the necessity of making an hdf5 interface specifically for it, but let's see what is the best course of action here.

I do like the idea of sniffing files. How does nibabel implement the procedure? Just a list of try statements? Or checkign some property/bytes of the file?