// GET: api/UsersInGroups
 public IEnumerable<UsersInGroups> Get()
 {
     SignatureRepository signatureRepository = new DataAccess.SignatureRepository();
     return signatureRepository.GetUsersInGroups();
 }
 // GET: api/Signatures
 public IEnumerable<Annotations> Get()
 {
     SignatureRepository signatureRepository = new DataAccess.SignatureRepository();
     return signatureRepository.GetAllSignatures();
 }