Resolve "Split rendering crashes in JBM"

• Related issues: #1119
• Requested reviewers:
  • @tyagiri for Dolby side of split rendering
  • @vaclav for framework code and memory usage (as discussed offline)
  • @kiene for tests and CI -> approved

Reason why this change is needed

Missing feature

Description of the change

Add support for split rendering to decoder when in VoIP mode.

Decoding mixed-format bitstreams (OSBA, OMASA) note yet correctly supported - there is a follow-up issue #1343 for this.

Affected operating points

• Decoding in VoIP mode with output configs BINAURAL_SPLIT_CODED and BINAURAL_SPLIT_PCM will now produce an output instead of throwing a NOT_IMPLEMENTED error
• All other operating points expected to be bit-exact