[CES-775] Add documentation for IAM framework

[Krusty93]

List of changes

Add documentation to explain how and why IAM DX framework was designed

Motivation and context

Making everyone understands how the framework was designed and how to exploit it

Type of changes

• Add new resources
• Update configuration to existing resources
• Remove existing resources

Does this introduce a change to production resources with possible user impact?

• Yes, users may be impacted applying this change
• No

Other information

[changeset-bot]

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Latest commit: 43273c8

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