App: WinglangAppPipeline to allow building a simple serverless application with Winglang

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As of today we only support a CDKPipeline / CdkAppPipeline - which automatically creates all steps required to build, package and deploy a simple CDK based application.

With this story we would like to provide a pipeline that follows the same steps for a Winglang based application.

[Lock128]

How to approach this task?

• Identify steps that will need to be executed as part of the pipeline for a "Winglang App"
• Identify the stages required for a Winglang Application in default and make them configurable
• Implement "one" engine (e.g. a Github Workflow) - and find out what are common scenarios for other engines
• Implement all currently supported engines by projen-pipelines

[Lock128]

As Wing transpiles to Terraform using "providers" (https://www.winglang.io/docs/category/platforms) we need a Winglang specific version of a Terraform Pipeline - let's create a Winlang pipeline that uses Terraform under the hood and then we decide on how to "abstract" this.