Update .bazelrc options for Windows Python/TensorFlow builds.
Update .bazelrc options for Windows Python/TensorFlow builds.

* Protobuf warnings are noisy. I think this makes them quieter, but I might not be using [these flags](https://docs.bazel.build/versions/master/user-manual.html#flag--per_file_copt) correctly.
* Math defines are needed since https://github.com/tensorflow/tensorflow/commit/42f8dd1f35fbead01fd68ae40a287d14a150ef95.
* `-NOGDI` might have been needed since https://github.com/google/iree/commit/6a7959a03d89ad2dbe1c4384781ce51146da2d5a, or something in TensorFlow could have changed. I'm not sure.

Tested:

* ` python3 ./colab/start_colab_kernel.py` (with `build --define=iree_tensorflow=true` in `user.bazelrc`)
  * Note: I see empty output in `edge_detection.ipynb`, in line with [this discussion](https://groups.google.com/forum/#!topic/iree-discuss/2O3YA4ZcZyA), with Vulkan otherwise seeming to work. That needs more investigation.
* Sampling of test targets under `bindings/python/pyiree/` and `integrations/tensorflow/compiler/`
  * Several tests fail, but they do build again.
* `bazel run iree/samples/vulkan:vulkan_inference_gui` (needs GDI)

Closes https://github.com/google/iree/pull/1115

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/iree/pull/1115 from ScottTodd:windows-python 6ea874f8aa186d6e8fa78c55452cebc785bcc400
PiperOrigin-RevId: 301869148

iree-org/iree,iree-org/iree,iree-org/iree,google/iree,iree-org/iree,google/iree,google/iree,iree-org/iree,iree-org/iree,google/iree,iree-org/iree,google/iree,google/iree,google/iree