Improve heuristics rules

[smoia]

Detailed Description

At the moment, the only thing used during heuristics to get the new filename is the name of the input of phys2bids. It's a very simple, basic way to BIDSify files, but heuristic statements could use much more information than just the name (or instead of the name)! For instance, the number of channels, their content, their lenght, ...

Possible Implementation

• Have a look at heudiconv and its heuristics
• Tinker with the heuristics to improve them!

[smoia]

Duplicate of #44

[smoia]

This is not a duplicate of #44 - my bad. This is about how to improve our heuristic files in order to have prettier and more complex heuristics (à la heudiconv).

It's quite a challenge, if anyone feels inspired/bored enough to tackle this!