0.1.1

Expanded testing, plus new models for AWS Config, SQS, SNS.

Adds a number of improvements. Tests will need to be revisited, but I've
added a decent base.

Added

• Adds support for generating a Graphviz diagram of an Organization with the new
  OrganizationDataBuilder.to_dot() function
• Adds DOT as a supported output format for the organization dump-all command
• Adds models for AWS Config notifications
• Adds models for SQS and SNS messages
• Adds methods to ModelBase to allow (de)serializing JSON or YAML strings
• Adds ModelBase.from_dict() to initialize a model from a dict using dacite
• Adds CodeQL analysis workflow for GitHub Actions

Changed

• breaking: Renames organization dump-json CLI command to organization dump-all
• Moves buiders into the models namespace