ICSHWI-11805: Update activation script to support require 5
This picks up the changes from require 5.0.0: the renaming of setE3Env.bash to activate, as well as the renaming of the version PVs.
This picks up the changes from require 5.0.0: the renaming of setE3Env.bash to activate, as well as the renaming of the version PVs.