Port MR1400 changes to main-pc.

• Link to issue in BASOP repo: #1716 (closed)
• Link to original MR in float repo: ivas-codec-pc/ivas-codec!1400 (merged)
• Requested reviewers: @vasilache

This MR does not include the changes for split rendering off path as they will not be used.

The MR also depends on previous reverb changes so it cannot be merged before those.