D-Net

[Trunk | Claims API]: ClaimsService.java:
1. [Bug fix] Call "this.emailSender.getManagerUtils().isCommunityManager()" instead of "this.emailSender.getCommunityUtils().isCommunityManager()"
2. In method "getUserEmailNotificationPreferences()" (/users/notification) set notification.setOpenaireName with openaireId (we do not query community API anymore and we do not have community name).

Get notifications
return 404 if not found
403 if no manager or curator

Do not initialize notifications if nothing found in the db - Return 204

Claim Service:
Notifications:
- allow save/ get notifications for community curators
- add method to compose 200 response
- return 403 if user is not among the managers or the curators

Claims Service: get Community claims:
Add check if user is manager in communityAPI

Create functions for common code:
Authorization: hasBasicAuthorization
Claims Service: getInfoAndBuildClaim that gets jsonObjects and extracts the information needed for "buildAndInsertClaim"

Pom.xml: adding dependency after removing uoa-clients

add dependency needed after removing uoa-commons

-Rename HelloWorldService to ClaimsService
-Remove methods for communites and ISLookUpService imports

HelloWorldService.java: Add 'testEmail' get method to send test email to specific users (Argiro K. & Konstantina G.) for some test community - path: 'test-email'.