Add optionnal parameters for Tesseract OCR #1154
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Added the possibility for users to specify OCR-related parameters for Tesseract such as language (like "eng") or configuration (like "--psm 6") directly in OCR-related keywords (such as RPA.Desktop.Read Text or RPA.Desktop.Find Text).
The parameters are optional and will not affect existing scripts.
Robotframework logs have been enhanced to display these optional parameters if specified.
These parameters are sometimes needed in order to optimise optical character recognition (example : by specifying the language used)