Update Primary Records REST Endpoints

Common Setup/Update Primary Records
The primary records update resource is used to update the primary flag of applications.
Get all applications
Method: get
Path: /fscmRestApi/resources/11.13.18.05/publicSectorUpdatePrimaryRecords
Get an application
Method: get
Path: /fscmRestApi/resources/11.13.18.05/publicSectorUpdatePrimaryRecords/{LnpRecordKey}
Update an application
Method: patch
Path: /fscmRestApi/resources/11.13.18.05/publicSectorUpdatePrimaryRecords/{LnpRecordKey}