fix: Replace acplt.org with example.org in example data (#460)

[ArokyaMatthew]

Replaces all references to https://acplt.org/ and http://acplt.org/ with https://example.org/ and http://example.org/ respectively throughout the codebase.

Closes #460

All Changes i have done -

• 1,505 replacements across 43 text files
• 2 regenerated .aasx binary packages (test_demo_full_example_json.aasx, test_demo_full_example_xml.aasx)

Affected areas

Category	Files
Example data generators (sdk/basyx/aas/examples/data/)	5
Tutorials (sdk/basyx/aas/examples/)	4
SDK test files (sdk/test/)	14
SDK adapter docstrings & docs	3
Compliance tool source & tests	4
Compliance tool serialized fixtures (JSON/XML)	11
Compliance tool .aasx binary packages	2

I did not change-

• URL path suffixes (e.g., /Test_Submodel, /Properties/ExampleProperty) are preserved as-is
• URL schemes (http:// vs https://) are preserved as-is
• No functional/logic changes — this is a pure identifier rename

Ouputs:-