upload numpy representations of expected images to allow for higher precision testing

see https://github.com/huggingface/diffusers/issues/914

this images are being used in https://github.com/Lewington-pitsos/diffusers/tree/precision-improvement-for-tests

If you pull that branch and run

pytest tests\pipelines\stable_diffusion\test_stable_diffusion_inpaint.py tests\pipelines\stable_diffusion\test_stable_diffusion_inpaint_legacy.py -k test_stable_diffusion_inpaint

for example, all 11 tests will pass (5 are using these instead of the PNG images)

in_paint/red_cat_sitting_on_a_park_bench.npy

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in_paint/red_cat_sitting_on_a_park_bench_k_lms.npy

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in_paint/yellow_cat_sitting_on_a_park_bench.npy

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in_paint/yellow_cat_sitting_on_a_park_bench_fp16.npy

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in_paint/yellow_cat_sitting_on_a_park_bench_pndm.npy

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