ADD support for kit epochs file

Not ready to merge yet.

Things to do:
- [ ] find better way to reshape data in _read_segment
- [ ] add test data
 
When a `.T` followed by a `reshape` (followed by another `.T`-type operation) can refactored to avoid the `.T`'s altogether by by creating the original array in `Fortran` order instead of `C` order, or vice-versa. I'd have to think about this specific case, though.