feat(ocr): added support for RapidOCR engine (#415)

* adding rapidocr engine for ocr in docling

Signed-off-by: swayam-singhal <swayam.singhal@inito.com>

* fixing styling format

Signed-off-by: Swaymaw <swaymaw@gmail.com>

* updating pyproject.toml and poetry.lock to fix ci bugs

Signed-off-by: Swaymaw <swaymaw@gmail.com>

* help poetry pinning for python3.9

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

* simplifying rapidocr options so that device can be changed using a single option for all models

Signed-off-by: Swaymaw <swaymaw@gmail.com>

* fix styling issues and small bug in rapidOcrOptions

Signed-off-by: Swaymaw <swaymaw@gmail.com>

* use default device until we enable global management

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

---------

Signed-off-by: swayam-singhal <swayam.singhal@inito.com>
Signed-off-by: Swaymaw <swaymaw@gmail.com>
Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>
Co-authored-by: swayam-singhal <swayam.singhal@inito.com>
Co-authored-by: Michele Dolfi <dol@zurich.ibm.com>

tests/test_e2e_ocr_conversion.py

@@ -10,6 +10,7 @@ from docling.datamodel.pipeline_options import (
     OcrMacOptions,
     OcrOptions,
     PdfPipelineOptions,
+    RapidOcrOptions,
     TesseractCliOcrOptions,
     TesseractOcrOptions,
 )
@@ -56,9 +57,11 @@ def test_e2e_conversions():
         EasyOcrOptions(),
         TesseractOcrOptions(),
         TesseractCliOcrOptions(),
+        RapidOcrOptions(),
         EasyOcrOptions(force_full_page_ocr=True),
         TesseractOcrOptions(force_full_page_ocr=True),
         TesseractCliOcrOptions(force_full_page_ocr=True),
+        RapidOcrOptions(force_full_page_ocr=True),
     ]
 
     # only works on mac