feat: cloudwatch logs transformer support

[Abhijoy-Mandal]

Issue # (if applicable)

Closes #34861.

Reason for this change

Creates CDK constructs for CloudWatch Logs Transformers. Transformers already have CFN constructs and this achieves functional parity.

Description of changes

Added a Transformer construct which is an abstraction over cfnTransformer.

Created a factory class ProcessorFactory with static methods to create each of the 5 overarching types of processors described in https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/CloudWatch-Logs-Transformation-Processors.html, namely: ParserProcessor, VendedLogParser, StringMutatorProcessor, JsonMutatorProcessor and DataConverterProcessor.
These classes implement a _bind() method responsible for returning the props expected by CFN constructs for each processor of the respective types.
These classes are further split into their processors defined by enums (ParserProcessorType, VendedLogType, StringMutatorType, JsonMutatorType, DataConverterType) and properties for each processor.

A Transformer expects a transformerConfig which is a list of processors. Processors can be created using the static methods createParserProcessor, createVendedLogParser, createStringMutatorProcessor, createJsonMutatorProcessor and createDataConverterProcessor in the ProcessorFactory, by passing the type (from the enums defined above) and the relevant props for that processor. ValidationError is thrown if the expected/required props are not passed.

Further validations are performed for limit breaches or positions of parsers being incorrect.

Describe any new or updated permissions being added

Description of how you validated changes

Added unit tests for each processor and each validation. Added integ test.

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

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This pull request has been removed from the queue for the following reason: pull request dequeued.

Pull request #34863 has been dequeued. The pull request could not be merged. This could be related to an activated branch protection or ruleset rule that prevents us from merging. (details: 2 of 2 required status checks are expected.).

You can check the last failing draft PR here: #34956.

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[alvazjor]

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Pull request has been modified.

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[Abhijoy-Mandal]

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AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 55f4a3e
• Result: SUCCEEDED
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