Enable precision-aware optimizer with TE.optim

[erhoo82]

What does this PR do ?

Interface for precision-aware optimizer that uses Transformer Engin optimizer.

Collection: [Note which collection this PR will affect]

Changelog

• Add the interface to enable precision-aware optimizer at both nemo 1.0 and 2.0

Usage

• Set recipe.optim.config.use_precision_aware_optimizer for nemo 2.0
• Set model.optim.use_precision_aware_optimizer for nemo 1.0

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Additional Information

• Related to # (issue)