Full test harness

dichotomize regular #4587

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Run time

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Job	Run time
cli-tests	9m 52s
examples	25m 38s
onnx-tests (1_4_1)	3m 1s
onnx-tests (1_5_0)	2m 50s
regular-tests	40m 43s
onnx-tests (1_6_0)	3m 11s
tflite	8m 12s
onnx-tests (1_7_0)	3m 0s
onnx-tests (1_8_1)	2m 56s
onnx-tests (1_9_0)	2m 58s
C	4m 8s
onnx-tests (1_10_2)	2m 56s
onnx-tests (1_11_0)	3m 5s
core-paranoid	11m 53s
onnx-with-asserts	1m 30s
onnx-tests (1_12_0)	3m 15s
onnx-tests (1_13_0)	2m 53s
python	4m 24s
	2h 16m 25s