tesseract-ocr-eng and tesseract-ocr-osd packages

These two pkgbuild files have to be modified since these packages only provide the languagedata files for tesseract OCR. there is nothing to build, just the files need to be copied to tessdata directory.

Once these are ok, they can be added as dependency in tesseract-ocr package.

When I know the correct syntax for pkgbuild for these, i can make pkgbuild files for other languages.

Thanks.