Various op-related changes#36

Merged

karllessard merged 7 commits intotensorflow:masterfrom

karllessard:op-changes

Apr 3, 2020

Commits on Mar 27, 2020

Rollback operator 'val' to 'constant'
karllessard
committed

Commits on Mar 28, 2020

Rename 'PrimitiveOp' to 'RawOp'
karllessard
committed

Commits on Mar 29, 2020

Commits on Apr 3, 2020