Merge pull request #15 from bruvduroiu/functional-tests

semantic_router/layer.py

semantic_router/linear.py

tests/functional/test_linear.py

tests/unit/encoders/test_base.py

tests/unit/encoders/test_cohere.py

tests/unit/encoders/test_openai.py

tests/unit/test_layer.py

tests/unit/test_schema.py