BASOP porting MR 195 - Port MR 1466 from float - implement conversion to and from ACN-SN3D
# Basic Info <!--- Remember to add issue and MR links to the status page in wiki here https://forge.3gpp.org/rep/sa4/audio/ivas-basop/-/wikis/IVAS-PC-MR-conversion-status --> - Original merge request in float repo: https://forge.3gpp.org/rep/ivas-codec-pc/ivas-codec/-/merge_requests/1466
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