Add support for SPKR-INFO lines in load_rttm

[hbredin]

RTTM files sometimes contain a bunch of lines describing the list of speakers.
Those are marked with SPKR-INFO first field.

pyannote-database/pyannote/database/util.py

Line 279 in 11d8dcb

def load_rttm(file_rttm):

[ganeshsutar]

Hi, Could I add the relevant feature and make a pull request? Also could you please give me a link for the RTTM specs to refer to while coding the feature.

[hbredin]

That would be great!

The specs are available in this document, Appendix A.

[hbredin]

Please see this as well pyannote/pyannote-core#75