Rename NGINX WAF and DoS

[lamATnginx]

Proposed changes

Rename it to comply with branding

Checklist

Before sharing this pull request, I completed the following checklist:

• I read the Contributing guidelines
• My branch adheres to the Git conventions
• My content changes adhere to the F5 NGINX Documentation style guide
• If my changes involve potentially sensitive information¹, I have assessed the possible impact
• I have waited to ensure my changes pass tests, and addressed any discovered issues

Footnotes

1. Potentially sensitive information includes personally identify information (PII), authentication credentials, and live URLs. Refer to the style guide for guidance about placeholder content. ↩

[github-actions]

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[ADubhlaoich]

I cannot find a single internal resource describing the urgency of this change or how it relates to any timelines for the unification effort.

[ADubhlaoich]

Changed the PR to draft. This is not due until September and will need to be reconciled closer to that date with the work I have been doing in the refactor.

[travisamartin]

Should we create an issue ticket for the change (documenting its background and AC) vs. keeping a draft PR around for an indeterminate amount of time?

[rnitzan]

Double F5 word
should be title: F5 DoS for NGINX