feat: enrichment steps on all convert pipelines (incl docx, html, etc) (#2251)

* allow enrichment on all convert pipelines

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

* set options in CLI

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

---------

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

docs/examples/enrich_simple_pipeline.py

@@ -0,0 +1,35 @@
+import logging
+from pathlib import Path
+
+from docling.datamodel.base_models import InputFormat
+from docling.datamodel.pipeline_options import ConvertPipelineOptions
+from docling.document_converter import (
+    DocumentConverter,
+    HTMLFormatOption,
+    WordFormatOption,
+)
+
+_log = logging.getLogger(__name__)
+
+
+def main():
+    input_path = Path("tests/data/docx/word_sample.docx")
+
+    pipeline_options = ConvertPipelineOptions()
+    pipeline_options.do_picture_classification = True
+    pipeline_options.do_picture_description = True
+
+    doc_converter = DocumentConverter(
+        format_options={
+            InputFormat.DOCX: WordFormatOption(pipeline_options=pipeline_options),
+            InputFormat.HTML: HTMLFormatOption(pipeline_options=pipeline_options),
+        },
+    )
+
+    res = doc_converter.convert(input_path)
+
+    print(res.document.export_to_markdown())
+
+
+if __name__ == "__main__":
+    main()