Onnx2tf

- requirements
- `ai-edge-litert==1.2.0`

What's Changed
* tf_2.19.0 by PINTO0309 in https://github.com/PINTO0309/onnx2tf/pull/745


**Full Changelog**: https://github.com/PINTO0309/onnx2tf/compare/1.26.9...1.27.0

- Keras 3.0 will be the default Keras version. You may need to update your script to use Keras 3.0.
- Please refer to the new Keras documentation for Keras 3.0 (https://keras.io/keras_3).
- This pull request is to experimentally verify the upgrade to `TensorFlow==2.16.1`.

What's Changed
* [experimental] tensorflow==2.16.1, Keras 3.0 by PINTO0309 in https://github.com/PINTO0309/onnx2tf/pull/609


**Full Changelog**: https://github.com/PINTO0309/onnx2tf/compare/1.19.16...1.20.0

- [[TODO] Verification of operation when upgrading to TensorFlow v1.13.0 348](https://github.com/PINTO0309/onnx2tf/issues/348)

What's Changed
* TF v2.12.0 -> TF v2.13.0-rc0 by PINTO0309 in https://github.com/PINTO0309/onnx2tf/pull/363


**Full Changelog**: https://github.com/PINTO0309/onnx2tf/compare/1.11.11...1.12.0

-okv3, --output_keras_v3: Optional[bool]
Output model in Keras (keras_v3) format.


What's Changed
* [Experimental / WIP] Generate a miniscule model for each OP only, retain the results of test inference, and propagate to all OPs. STEP.1,2 by PINTO0309 in https://github.com/PINTO0309/onnx2tf/pull/184
* TF v2.12.0rc0 - 1. `Transpose` now supports 6D tensors. 2. Support for `Atan2`. by PINTO0309 in https://github.com/PINTO0309/onnx2tf/pull/189
* Support for `keras_v3` format by PINTO0309 in https://github.com/PINTO0309/onnx2tf/pull/190


**Full Changelog**: https://github.com/PINTO0309/onnx2tf/compare/1.6.7...1.7.0

- `Add`, `Div`, `Mod`, `Mul`, `Sub`, `Cast`, `MatMul`
- Improved conversion stability for models exported with `torch.autocast("cuda", dtype=torch.float16)`

What's Changed
* Improved conversion stability for models exported with `torch.autocast("cuda", dtype=torch.float16)` by PINTO0309 in https://github.com/PINTO0309/onnx2tf/pull/746


**Full Changelog**: https://github.com/PINTO0309/onnx2tf/compare/1.27.0...1.27.1

- from `tensorflow==2.17.0` to `tensorflow==2.19.0`
- from `tf-keras~=2.16` to `tf-keras==2.19.0`
- from `tf.lite.Interpreter()` to `ai_edge_litert.interpreter.Interpreter()`