Add Support for Publishing Separate Apps from Separate Modules

[sethtdenney]

Today, this CodePipeline tool only allows a single Serverless Application Repository application to be published from a single code repository. This issue is to add support for publishing a separate application to SAR for each module within a given code repository, given that each module has its own SAR .yaml file. Additionally beneficial would be an optional module inclusion/exclusion list to only publish a subset of the modules which might have SAR .yaml files.

[avirtuos]

+1