Restructure `services.py` to be class based with a class for each web service

[Eva Maxfield Brown]

Example being:

class CommitteeService(obj):

   def __init__(self):
      # attached the header attribute
      # a description would be neat
      # construct attributes for every function that uses this service

This will make it easier for people to not have to remember or have the WSL Web Services API open in another window.

[Eva Maxfield Brown]

Completed in [gh-2].