Add apigw-fargate-terraform pattern

[enmata]

Issue #, if available:
Adding apigw-fargate-terraform pattern
https://github.com/enmata/serverless-patterns/pull/new/apigw-fargate-terraform_enmata

Description of changes:
Adding the terraform version of apigw-fargate-cdk pattern

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[enmata]

Pull Request
#2437