Add transformation types to Example 2 rwd-lineage.xml

Regenerate rwd-lineage.xml from RWDLineage-Table CSV using the
transformation column for each MapID's Transformation element type
and text. Four types used: DirectMap, LabValueParsing,
ElevatedLiverEnzyme, UnitConversion.

Add *.xlsx - *.csv pattern to .gitignore to exclude working
export artifacts.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: tnagamine

.gitignore

@@ -5,8 +5,9 @@ examples/example1/generate_xml.py
 .DS_Store
 **/.DS_Store
 
-# Tests
+# Tests and working artifacts
 **/tests/
+*.xlsx\ -\ *.csv
 
 # Python / pytest
 __pycache__/