AWS::AppSync::FunctionConfiguration mapping templates packaging support

[mkrn]

Add packaging of local files support for "AWS::AppSync::FunctionConfiguration" resource (AWS AppSync Function) mapping templates:

RequestMappingTemplateS3Location
ResponseMappingTemplateS3Location

Issue #, if available:
#897

Description of changes:
Added new AppSync FunctionConfiguration resource and 2 properties to be supported to configuration file along other supported properties.

Checklist:

• Write Design Document (Do I need to write a design document?)
• Write unit tests
• Write/update functional tests
• Write/update integration tests
• make pr passes
• Write documentation

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[jfuss]

@mkrn Thanks for the PR but this is not what you expect. The implementation of package current lives within AWS CLI's package command: https://github.com/aws/aws-cli/blob/develop/awscli/customizations/cloudformation/artifact_exporter.py

What you are editing, is not related to the packing command.

This will be needed to keep references to the correct files with build but that is only after package supports these resources.

[mkrn]

@jfuss Thanks for clarifying this! Now I see, so should that be added anyway and then I can submit another PR to aws-cli ?

[jfuss]

@mkrn I don't want to accept this until the resources are added within package to avoid confusion.

[mkrn]

@jfuss ok thanks I will update this thread once I submit a PR to aws-cli package

[xentek]

@thesriram would merging aws/aws-cli#3883 fix this branch?

[sriram-mv]

@xentek
aws/aws-cli#3883 is merged.