so it is possible now to create custom host configuration with template
and all configurations are handled consistenly.
Also introduce and use new ScriptDefinition class wrapping compilation
and evaluation configurations, that could be consistenly created from a
template.
- add script annotation for specifying default configuration for a script
- add support for this annotation in the default configurator
- rename configurator accordingly
- add default implementation of the refineConfiguration method
- make property bag class open
- get rid of selector (because of confusions), move it's data into
definition itself and make it more generic with heterogeneous map
- make main KotlinScript annotation accept complete definition
- make additional annotation for building definition from parts
- add ScriptingEnvironment and pass it as a constructor parameter to
the script handlers
- rename some classes for clarity