** Added checks that required settings are set into GoogleCalendarClient
of Google calendar plugin
** Splitted school data bridge Role interface into WorkspaceRole and
EnvironmentRole interfaces
** Removed deprecated settings/roles view
** Removed unused imports
** Changed AbstractAuthenticationStrategy to check whether school data
bridge created new user correctly or not
** Added WorkspaceArchetype property into WorkspaceRoleEntity (can be
used to specify role as student, teacher or custom role)
** Changed findUser and findUserEnvironmentRole methods of
PyramusUserSchoolDataBrdige to use PyramusIdentifierMapper instead of
mapping id's it self
** Changed coursepicker to list workspace teachers by archetype