- refactor(mge): add support for optimizer.step().clear_grad() idiom
- refactor(mge): rename some methods of GradManager
- refactor(mge): remove tensor_nn and TensorDict
- refactor(mge): remove Buffer
- refactor(mge): remove requires_grad flag
- refactor(mge): add a default grad=None attribute to Tensor
- refactor(mge): deprecation for 1.0
GitOrigin-RevId: 3b723d9387