[non-BE][allow regression] Port 403 - Float MR 2268 - Object editing issues, missing pieces

• Link to issue in BASOP repo: #2149 (closed)
• Link to original MR in float repo: ivas-codec-pc/ivas-codec!2268 (merged)
• Requested reviewers: @weckbecker

Note that this was partially introduced in the original object editing port (including the switch into options.h). This now completes the port.