Replace hallucinated relative imports with correct absolute imports
across the ontology query package, and fix OntologyMatcher reference
to match the actual class name OntologyMatcherForQueries. Simplify
test to use standard imports instead of importlib hack.
Cosmetic, but simpler imports provides undeterministic imports in a dev
environment, and also means we're properly testing linkage
* Onto-rag tech spec
* New processor kg-extract-ontology, use 'ontology' objects from config to guide triple extraction
* Also entity contexts
* Integrate with ontology extractor from workbench
This is first phase, the extraction is tested and working, also GraphRAG with the extracted knowledge works
