v0.2.4

Added

• (ocr) export ocr::process symbol

Fixed

• (ocr) also init TESSERACT on main thread

Other

• (ocr) error for already initialized TESSERACT
• (ocr) manage Tesseract init error
• (code_check) add --locked to cargo steps
• (code_check) remove exit 1 in error summary check
• (ocr) Add documentation to ocr::Error