Merge updates of Multi-Talker Parakeet Model, Modules, Dataloader and Utils PR 01

[weiqingw4ng]

What does this PR do ?

Add models, modules and dataloader codes.

Collection: ASR-SpeakerTask

Changelog

Added RNNT based streaming multitalker ASR model (parakeet)
Added dataloader code and util files.
Added example files to run streaming multi-talker parakeet.

Usage

python3 <NeMoROOT>/examples/asr/asr_cache_aware_streaming/speech_to_text_multitalker_streaming_infer.py \
          asr_model=nvidia/multitalker-parakeet-streaming-0.6b-v1 \
          diar_model=nvidia/diar_streaming_sortformer_4spk-v2 \
          audio_file=example.wav \
          max_num_of_spks=4 \
          masked_asr=false \
          parallel_speaker_strategy=true \
          att_context_size=[70,13] \
          output_path=./output.json \ # where to save the output seglst file
          print_path=./print_script.sh

Before your PR is "Ready for review"

Pre checks:

• Make sure you read and followed Contributor guidelines
• Did you write any new necessary tests?
• Did you add or update any necessary documentation?
• Does the PR affect components that are optional to install? (Ex: Numba, Pynini, Apex etc)
  • Reviewer: Does the PR have correct import guards for all optional libraries?

PR Type:

• New Feature
• Bugfix
• Documentation

If you haven't finished some of the above items you can still open "Draft" PR.

Who can review?

Anyone in NeMo SpeechAI ASR

Additional Information

[github-advanced-security]

CodeQL found more than 20 potential problems in the proposed changes. Check the Files changed tab for more details.

[tango4j]

LGTM. Approving.