added basic account api entity
worked on account and contact api
added new methods to manager
updated ContentNavigation
corrected response of NavigationController
worked on api entities/controller/manager
fixed import tests
worked on solving the recursion
worked on api entities and recursion caused by serializer
fixed account controller
fixed recursion bug in account - contact
worked on api entities avitivies working again
added tags to the account controller - rest testconfig
fixed contact tests
fixed code style issues
removed blank lines - fixed bug
removed unused and duplicate method
fixed import issue and removed old/unused code
fixed minor bug for querying tags
added number to partial account group