Add ComputeAndApplyVocabulary and Scale data notebook (apache#29857)

* Add compute_and_apply_vocab notebook

* Update compute_and_apply_vocab.ipynb

* Add Scale data notebook

* Add colab and github links to scale_data.ipynb

* Update links in scale_data.ipynb

* Update links in compute_and_apply_vocab.ipynb

* Update scale_data.ipynb

* Update compute_and_apply_vocab.ipynb

* Apply suggestions from code review

Co-authored-by: Rebecca Szper <[email protected]>

* Add files via upload

* Update scale_data.ipynb

* Apply suggestions from code review

Co-authored-by: Danny McCormick <[email protected]>

* Update examples/notebooks/beam-ml/mltransform/compute_and_apply_vocab.ipynb

Co-authored-by: Danny McCormick <[email protected]>

* Add headers about artifact location

* Update compute_and_apply_vocab.ipynb

* Update scale_data.ipynb

* Update scale_data.ipynb

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Co-authored-by: Rebecca Szper <[email protected]>
Co-authored-by: Danny McCormick <[email protected]>