use the same dct:rightsHolder for all models

[VladimirAlexiev]

• The model urn:uuid:f1d9a88d-0ff5-4e4b-9d6a-c353fe8232c3 "Telemark-120_AO" "Telemark-120 Aviation Obstacle"
  has dct:rightsHolder "ElBits"
• All other models have dct:rightsHolder "DIGIN"

Please use the same name for uniformity