Standalone diarization+ASR evaluation script
# What does this PR do ?

Add a standalone diarization-ASR evaluation transcript.
This script was build at the request for testing ASR+diarization with already extracted files.

Adding diar_infer_general.yaml (VAD optimized for multilingual ASR dataset, diarization optimized on DIHARD dev set)

**Collection**: [Note which collection this PR will affect]

ASR 
# Changelog 
- Add specific line by line info of high level changes in this PR.

# Usage
* You can potentially add a usage example below

```python
python eval_diar_with_asr.py \
 --hyp_rttm_list="/path/to/hypothesis_rttm_filepaths.list" \
 --ref_rttm_list="/path/to/reference_rttm_filepaths.list" \
 --ref_ctm_list="/path/to/reference_ctm_filepaths.list" \
 --hyp_ctm_list="/path/to/hypothesis_ctm_filepaths.list" \
 --root_path="/path/to/output/directory"
```

# Before your PR is "Ready for review"
**Pre checks**:
- [x] Make sure you read and followed [Contributor guidelines](https://github.com/NVIDIA/NeMo/blob/main/CONTRIBUTING.md)
- [x] 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**:
- [x] New Feature
- [ ] Bugfix
- [ ] Documentation

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


## Who can review?
Anyone belongs to ASR

# Additional Information
* Related to # (issue)
