Qonnx binary quant dev

[jmitrevs]

Description

This is an further work on PR #1292: Added a transformation for the QONNX operator BipolarQuant to hls4ml operator BinaryQuantizer.

• Added a ONNX BipolarQuant Operator.
• Added three transformations (optimizations) that transform the qonnx operator to an hls4ml operator.

Adding those changes showed issues in hls4ml binary handling, that this PR continues to fix.

Type of change

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• Bug fix (non-breaking change that fixes an issue)
• Documentation update
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• A new research paper code implementation
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Tests

This PR includes the BipolarQuant tests added to test_qonnx.py from the original PR (PR #1292).

Checklist

• I have read the guidelines for contributing.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• I have installed and run pre-commit on the files I edited or added.
• I have added tests that prove my fix is effective or that my feature works.