(iotevents): Add aws-iotevents AlarmModel L2 Constructs

[azatoth]

Describe the feature

L2 Constructs for AWS::IoTEvents::AlarmModel

Use Case

To allow users to use L2 constructs for AWS::IoTEvents::AlarmModel.

Proposed Solution

I suspect it should be implemented similar to how DetectorModel is implemented. Thought it might need its own actions package.

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.46.0

Environment details (OS name and version, etc.)

Linux