Upgrade SMSD to 6.7.0, add golden dataset benchmark (Lin et al. 2022)

- Bump SMSD 6.3.0 to 6.7.0
- Add golden_dataset.rdf (1,851 reactions from Lin et al. 2022 benchmarking study)
- New GoldenDatasetBenchmarkTest: compares RDT mapping against gold-standard
  atom-atom mappings from manually curated reactions
- Metrics: mapping success, exact atom-map match, atom-level accuracy, bond changes
- Reference: DOI 10.1002/minf.202100138

Author: asad

pom.xml

@@ -185,7 +185,7 @@
         <dependency>
             <groupId>com.bioinceptionlabs</groupId>
             <artifactId>smsd</artifactId>
-            <version>6.3.0</version>
+            <version>6.7.0</version>
         </dependency>
 
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