DLP: Added sample for reidentify text and table using FPE

[dinesh-crest]

Description

References:- https://cloud.google.com/dlp/docs/samples/dlp-reidentify-text-fpe
https://cloud.google.com/dlp/docs/samples/dlp-reidentify-table-fpe

Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.

Checklist

• I have followed guidelines from CONTRIBUTING.MD and Samples Style Guide
• Tests pass: npm test (see Testing)
• Lint pass: npm run lint (see Style)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This pull request is from a branch created directly off of GoogleCloudPlatform/nodejs-docs-samples. Not a fork.
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new sample directory, and I created GitHub Actions workflow for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

[snippet-bot]

Here is the summary of changes.

You are about to add 2 region tags.

• dlp/reidentifyTableWithFpe.js:22, tag dlp_reidentify_table_fpe
• dlp/reidentifyTextWithFpe.js:29, tag dlp_reidentify_text_fpe

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