gh-1701 - Added script to update copyright dates
gh-1701 - Added script to update copyright dates

GovernmentCommunicationsHeadquarters/Gaffer,GovernmentCommunicationsHeadquarters/Gaffer,gchq/Gaffer,gchq/Gaffer,gchq/Gaffer,GovernmentCommunicationsHeadquarters/Gaffer,gchq/Gaffer,GovernmentCommunicationsHeadquarters/Gaffer