Update segmentation documentation

[kprokofi]

Summary

1. Update docs
2. Provide new benchmark results
3. Minor fixes for predict mode

How to test

Checklist

• I have added unit tests to cover my changes.​
• I have added integration tests to cover my changes.​
• I have ran e2e tests and there is no issues.
• I have added the description of my changes into CHANGELOG in my target branch (e.g., CHANGELOG in develop).​
• I have updated the documentation in my target branch accordingly (e.g., documentation in develop).
• I have linked related issues.

License

• I submit my code changes under the same Apache License that covers the project.
  Feel free to contact the maintainers if that's a concern.
• I have updated the license header for each file (see an example below).

# Copyright (C) 2024 Intel Corporation
# SPDX-License-Identifier: Apache-2.0

[kprokofi]

waiting benchmark results...

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 74.17%. Comparing base (4d40a7d) to head (f978ea0).

Files	Patch %	Lines
src/otx/core/model/segmentation.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3425      +/-   ##
===========================================
- Coverage    74.25%   74.17%   -0.09%     
===========================================
  Files          253      253              
  Lines        24111    24111              
===========================================
- Hits         17904    17884      -20     
- Misses        6207     6227      +20     

Flag	Coverage Δ
py310	74.15% <50.00%> (-0.10%)	⬇️
py311	74.00% <50.00%> (-0.24%)	⬇️

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[kprokofi]

Comparison between new OTX2.0 (decoupled) and OTX1.5 (with masks annotation (without to/from polygons transformation) for fair comparison)