Template Configurations

We need a comprehensive mechanism to define template configurations. Template configurations are configurations that end users can import and quickly fill with application-specific values.

loom.components.configuration.merger.* already deals with merging of elements. There are specific processing instructions on how different layers are merged. We need to introduce masking/removing of attributes.

We could also attempt another approach that has specific jelly-like tags in there that indicate where values are to be inserted and the type, default value, description etc of value. We could use a language similar to IDEAs live templates to implement this features.