* afd profile and endpoint boilerplate

* Get-AzAfdProfile, afd profile model, validators

* afdendpoints and utilities

* resource utility class

* upgrade sdk, refactor afd profiles, endpoints, and custom domains

* minor refactoring

* origin group & origin get, move models, refactors

* afd profile crud and refactoring

* endpoints, origin groups, and profiles

* custom domains, routes, utilities

* afd rule, afd rule sets, rule models

* security policies and tests

* SessionRecords files

* add md files for new cmdlets

* change log update

* update md files

* fix profile and custom domain tests

Co-authored-by: Jorin Mejia <jomejia@microsoft.com>