* Change naming to use PascalCase rather than snake_case in the C++ guidelines.
* Fix up members to follow the m_ and g_ prefixes agreed to 2020-04-02, fix ids to follow the hierarchy, and separate naming rules as the document originally intended. Factored out rules that apply to all naming, like being clear and concise.
* Don't use 'Api' as example namespace name.
The environment variables AZURE_CLOUD, AZURE_SUBSCRIPTION_ID, and AZURE_RESOURCE_GROUP are environment variables which impact multiple client libraries across the SDK and are not Identity specific. Furthermore AZURE_SUBSCRIPTION_ID and AZURE_RESOURCE_GROUP don't apply to Identity at all.
* Removing old data as preparation for new Jekyll site
* Jekyll site implementation
* Updated links in README
* Corrected link for TypeScript
* Replacement for PR #526
* Integration of PR #538
* Rename of the sidebar titles, per bterlson
* External links open in same tab
* Added common redirects for the guidelines
* Added redirects for migration from the azuresdkspec site
* Added general guidelines redirect
* Added Review Process
* Replacement for PR #541
* Moved README-EXAMPLE to repo
* Fixing links in .NET guidelines
* (#312) Made the guidelines and policy release versioning agree