New pattern: aws-kinesisfirehose-elasticsearch

Data coming through Firehose pushed to Elasticsearch

### Use Case

### Proposed Solution

### Other

* [ ] :wave: I may be able to implement this feature request
* [ ] :warning: This feature might incur a breaking change

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This is a :rocket: Feature Request

The request names an AWS Solutions Constructs pattern that sends data through Firehose to Elasticsearch, but it names no files, tests, prototype, or detailed requirements. Start by reviewing the repository’s existing AWS CDK architectural patterns and determine the expected structure and acceptance criteria for a new pattern; done means the requested integration is defined clearly enough to implement and verify.

Written by the indexing model from the issue text.