Fix ONNX dynamic axes export support with onnx simplifier, make onnx simplifier optional#2856

Merged

glenn-jocher merged 3 commits intoultralytics:masterfrom timstokman:export-tweaks

Apr 20, 2021

+19-15

Commits on Apr 18, 2021

Ensure dynamic export works succesfully, onnx simplifier optional
Tim
committed

Commits on Apr 20, 2021