Port HGTD Digitization components to master
This MR ports the components for HGTD digitization from 21.9 to master that were originally introduced in !46396 (merged), !46475 (merged), and !47627 (merged).
This MR ports the components for HGTD digitization from 21.9 to master that were originally introduced in !46396 (merged), !46475 (merged), and !47627 (merged).