ES-at-Scale Library

[VsonicV]

This release introduces the new ES-at-Scale library with the following features:

1. A more extensible coding interface for easier adaptation to new tasks/models. @conorfhayes
2. A refined infrastructure with more stable training and improved precision handling. @dibbla @conorfhayes @kschweig @VsonicV
3. Support for the MATH benchmarks. @conorfhayes
4. A detailed user guide/documentation. @conorfhayes @VsonicV

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This discussion was created from the release ES-at-Scale Library.