v0.0.2: Remove Obsolete Authentication Scopes

Wild Apricot obsoleted a few API authentication scopes.
Updated scopes exists, but they were not added as they
are not yet implemented in Pluot.

REF: [Wild Apricot Authentication Scopes](http://help.wildapricot.com/display/DOC/API+V2+authentication#APIV2authentication-Supportedscopes)

GET Endpoints for Contacts & Payments

Initial code commit along with GET endpoints for Contacts and Payments