cli-input-json support for `aws cloudformation deploy`

**Is your feature request related to a problem? Please describe.**
Currently, `aws cloudformation deploy` does not accept cli-input-json.

**Describe the solution you'd like**
Being able to pass the same configuration file to both CodePipeline and `aws cloudformation deploy --cli-input-json` (edit: [defined here](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/continuous-delivery-codepipeline-cfn-artifacts.html#w2ab1c13c17c15))

**Describe alternatives you've considered**
Currently we are maintaining both the input file for codepipeline deployment and a shell script to call `aws cloudformation deploy` with the necessary parameters.