Add 3 new fields to the API of members:
Add 3 new fields to the API of members:

average_weekly_presence_desc
- A number 0-4 of the amount of time a member spends on average in the knesset compared to others.

committees:
- The committees the member took part of as a dictionary (name + url)

roles:
- Currently fake, as its not present in the db

habeanf/Open-Knesset,MeirKriheli/Open-Knesset,ofri/Open-Knesset,alonisser/Open-Knesset,OriHoch/Open-Knesset,livni/old-OK,DanaOshri/Open-Knesset,daonb/Open-Knesset,DanaOshri/Open-Knesset,jspan/Open-Knesset,DanaOshri/Open-Knesset,livni/old-OK,jspan/Open-Knesset,navotsil/Open-Knesset,habeanf/Open-Knesset,noamelf/Open-Knesset,noamelf/Open-Knesset,daonb/Open-Knesset,Shrulik/Open-Knesset,ofri/Open-Knesset,alonisser/Open-Knesset,Shrulik/Open-Knesset,MeirKriheli/Open-Knesset,ofri/Open-Knesset,noamelf/Open-Knesset,habeanf/Open-Knesset,otadmor/Open-Knesset,daonb/Open-Knesset,DanaOshri/Open-Knesset,OriHoch/Open-Knesset,otadmor/Open-Knesset,alonisser/Open-Knesset,daonb/Open-Knesset,navotsil/Open-Knesset,navotsil/Open-Knesset,habeanf/Open-Knesset,jspan/Open-Knesset,jspan/Open-Knesset,MeirKriheli/Open-Knesset,ofri/Open-Knesset,Shrulik/Open-Knesset,noamelf/Open-Knesset,navotsil/Open-Knesset,otadmor/Open-Knesset,MeirKriheli/Open-Knesset,OriHoch/Open-Knesset,Shrulik/Open-Knesset,otadmor/Open-Knesset,alonisser/Open-Knesset,OriHoch/Open-Knesset