Configuration format

[jonesbusy]

The PR #20 (comment) introduced a JSON configuration format with the recipe map and coordinate to find it.

We could support 2 use case

• This file is generated by the tool depending on the operation performed and the recipes to apply
• Given by the user (or an other external tool like the plugin health score)

Is the JSON format adapted for this ? What about YAML ? Other ?

For example OpenRewrite is using YAML for declarative recipes (https://docs.openrewrite.org/running-recipes/popular-recipe-guides/authoring-declarative-yaml-recipes) and other Jenkins tool like Plugin installation manager are supporting YAML for plugin file (https://github.com/jenkinsci/plugin-installation-manager-tool)