[quantization] Introduce wrapper for Qwen3VLTextRotaryEmbedding

[dvsav]

This change introduces QuantQwen3VLTextRotaryEmbedding wrapper to support post-training quantization of Qwen3VLTextRotaryEmbedding module.

Why?

Qwen3VLTextRotaryEmbedding module is used in the language model of Qwen.
Trying to quantize Qwen3VLTextRotaryEmbedding via PTQ generates exception PTQQuantizer: no quantization wrapper for Qwen3VLTextRotaryEmbedding.

What

This change introduces:

• Class QuantQwen3VLTextRotaryEmbedding (tico/quantization/wrapq/wrappers/qwen_vl/quant_text_rotary_embedding.py).
• Unit tests: class TestQuantQwen3VLTextRotaryEmbedding (test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py) - skipped if transformers package is not installed.
• New entry tico.quantization.wrapq.wrappers.qwen_vl.quant_text_rotary_embedding in _CORE_MODULES (tico/quantization/wrapq/wrappers/registry.py).
• Example of Qwen3VLTextRotaryEmbedding quantization and conversion to Circle (tico/quantization/wrapq/examples/qwen/quantize_qwen_text_rotary_embedding.py).

Unit Tests

Unit tests results with coverage information:

$ coverage run -m pytest test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py -v
======================================================================================= test session starts ========================================================================================
platform linux -- Python 3.10.12, pytest-8.4.0, pluggy-1.6.0 -- /home/d.savchenkov/myenv/bin/python3
cachedir: .pytest_cache
rootdir: /home/d.savchenkov/TICO
configfile: pyproject.toml
plugins: anyio-4.12.0, mock-3.15.1, xdist-3.7.0, cov-6.2.1
collected 12 items                                                                                                                                                                                 

test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_activation_stats_collected PASSED                                    [  8%]
test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_cos_sin_relationship PASSED                                          [ 16%]
test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_different_batch_sizes PASSED                                         [ 25%]
test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_different_sequence_lengths PASSED                                    [ 33%]
test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_dtype_override PASSED                                                [ 41%]
test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_mode_transitions PASSED                                              [ 50%]
test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_no_learnable_parameters PASSED                                       [ 58%]
test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_observer_count PASSED                                                [ 66%]
test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_output_range PASSED                                                  [ 75%]
test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_output_shape PASSED                                                  [ 83%]
test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_quantised_output_close PASSED                                        [ 91%]
test/quantization/wrapq/wrappers/qwen_vl/test_quant_text_rotary_embedding.py::TestQuantQwen3VLTextRotaryEmbedding::test_registration_in_registry PASSED                                      [100%]

================================================================================== 12 passed, 2 warnings in 6.66s ==================================================================================```

Coverage info (irrelevant files skipped):
```sh
$ coverage report -m
Name                                                                      Stmts   Miss  Cover   Missing
-------------------------------------------------------------------------------------------------------
...
tico/quantization/wrapq/wrappers/qwen_vl/quant_text_rotary_embedding.py      52      0   100%
...
-------------------------------------------------------------------------------------------------------
TOTAL                                                                     10300   6628    36%