Refactor#35

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chnzhangrui wants to merge 15 commits intovlimant:masterfrom

chnzhangrui:refactor

Commits on Jul 28, 2020

Commits on Jul 29, 2020

Fix TF2 compatibility
chnzhangrui
committed

Commits on Jul 30, 2020

Move drivers to nnlo.driver
chnzhangrui
committed