Move fill-gaps and eov-expand to server
=== pbeast ===
Rewrite APPLY_DS_ALGO to follow changes in fill-gaps and eov-expand policy and fix latest issue descibed in ADAMATLAS-401 (Igor Soloviev) Minor improvement suggested by CPPCHECK (Igor Soloviev) Do not allow unexpected arguments of command line parameters (Igor Soloviev) Redesign implementation of downsampled EoV policy, see ADAMATLAS-401 (Igor Soloviev) The CookieSetup.AutoUpdateUserCertificates is no more supported by CERN SSO on CC7 (Igor Soloviev) Make code compile with Clang 12. (Reiner Hauser) Code refactoring: simplification and optimisation (Igor Soloviev)