Create a Key-Manager (for APIM) image

[vozzy]

Description: Have the ability to use the Identity Server version > 5.10.0 as the Key Manager for the API Manager > 3.2.0. Since the pre-packaged IS is deprecated, it would be nice to use a docker image with a km flag or similar that is preconfigured as described here.

This would enhance the ability of using an IS inside of Docker and Kubernetes in conjunction with the API Manager.

Suggested Labels:

enhancement, Type/New Feature

Suggested Assignees: @vozzy

Affected Product Version:

5.10.x

Related Issues: https://github.com/wso2/docs-apim/issues/2356