Refdata.Articles.xml Diff Testing #247

1. refdata_diff_gtin.cpp.txt
2. refdata_diff_hash.cpp.txt
3. g++ -o xml_diff_gtin refdata_diff_gtin.cpp
4. output_changes.xml.txt
   Reading Refdata.Articles_30.5.2025.xml...
   Reading Refdata.Articles.xml...
   Comparing articles...
   Found 7 changed articles
   Found 96 new articles (not counting new GTINs)
   Found 116 removed articles

Diff written to output_changes.xml

=== GTIN SUMMARY ===
Total GTINs in Refdata.Articles_30.5.2025.xml: 14811
Total GTINs in Refdata.Articles.xml: 14795
New GTINs: 4
Deleted GTINs: 20

New GTINs:

• 7680624460034
• 7680626280012
• 7680626280029
• 7680702010021

Deleted GTINs:

• 7680380340656
• 7680380340731
• 7680389890145
• 7680478870119
• 7680559500065
• 7680568470014
• 7680568470021
• 7680568470038
• 7680568470045
• 7680688620054
• 7680688620061
• 7680694630016
• 7680694630023
• 7680694630054
• 7680694630078
• 7680694630085
• 7680694630092
• 7680694630108
• 7680694630115
• 7680694630122

=== ARTICLE SUMMARY ===
Changed articles: 7
New articles: 100
Removed articles: 116