ENH: MIP image filter for DRR image calculation #193

Job	Run time
build-linux-cuda-python-packages (8, _2_28-x64)	41m 32s
build-windows-cuda-python-packages (8)	33m 23s
build-linux-cuda-python-packages (8, 2014-x64)	37m 50s
build-windows-cuda-python-packages (9)	34m 3s
build-linux-cuda-python-packages (9, _2_28-x64)	40m 8s
build-windows-cuda-python-packages (10)	34m 24s
build-linux-cuda-python-packages (9, 2014-x64)	36m 15s
build-windows-cuda-python-packages (11)	36m 29s
build-linux-cuda-python-packages (10, _2_28-x64)	39m 57s
build-linux-cuda-python-packages (10, 2014-x64)	36m 35s
build-linux-cuda-python-packages (11, _2_28-x64)	39m 56s
build-linux-cuda-python-packages (11, 2014-x64)	35m 2s
publish-python-packages-to-pypi	23s
	7h 25m 57s

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