[Draft][non-BE][rend-non-BE][split-non-BE][allow reagression]Float 1134 brir level differences between mc rendering to stereo and binaural

• Related issues: ivas-codec-pc/ivas-codec#1590
• Requested reviewers:

Reason why this change is needed

• Related to issue #1134 (closed) (this issue is specific to BRIR levels which will be increased by 6.5dB)

Description of the change

• Describe what is done.

Affected operating points

• Describe here as well as possible what operating points are affected and how
• In minimum, there should be a status for bitstream compatibility and output bit exactness
• For bitstream compatibility, the following levels are helpful for describing encoder
  1. Produced bitstream is BE compared to previous state.
  2. Produced bitstream is non-BE but it is fully backwards compatible for decoding. Decoded output may differ.
  3. Produced bitstream is non-BC. Old decoder cannot decode the produced bitstream correctly.
• For output difference, use BE or non-BE. Additionally, amount of difference can be presented.