Refactor Affine Quantized Tensor #5150

Job	Run time
test (CPU 2.4, linux.4xlarge, torch==2.4.0 --index-url https://download.pytorch.org/whl/cpu, cpu) / linux-job	8m 55s
test (CPU Nightly, linux.4xlarge, --pre torch==2.6.0.dev20241101 --index-url https://download.pyt... / linux-job	10m 19s
test (CPU 2.5.1, linux.4xlarge, torch==2.5.1 --index-url https://download.pytorch.org/whl/cpu, cpu) / linux-job	9m 54s
test (CPU 2.3, linux.4xlarge, torch==2.3.0 --index-url https://download.pytorch.org/whl/cpu, cpu) / linux-job	7m 20s
test (CUDA 2.3, linux.g5.12xlarge.nvidia.gpu, torch==2.3.0, cuda, 12.1) / linux-job	28m 30s
test (CUDA 2.4, linux.g5.12xlarge.nvidia.gpu, torch==2.4.0, cuda, 12.1) / linux-job	39m 26s
test (CUDA 2.5.1, linux.g5.12xlarge.nvidia.gpu, torch==2.5.1 --index-url https://download.pytorch... / linux-job	1h 4m 0s
test (CUDA Nightly, linux.g5.12xlarge.nvidia.gpu, --pre torch==2.6.0.dev20241101 --index-url http... / linux-job	1h 8m 14s
	3h 56m 38s

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