Tesseract ocr Maui v1.0.8

Add engine configuration property (issue #16) to ITesseract

Example of configuration

ITesseract tesseract = GetTesseract();    // This represents some way of getting ITesseract object, for example DI
tesseract.EngineConfiguration = (engine) =>
{
    // Engine uses DefaultSegmentationMode, if no other is passed as method parameter.
    // If ITesseract is injected to page, this is only way of setting PageSegmentationMode.
    // PageSegmentationMode defines how ocr tries to look for text, for example singe character or single word.
    // By default uses PageSegmentationMode.Auto.
    engine.DefaultSegmentationMode = TesseractOcrMaui.Enums.PageSegmentationMode.Auto;
    
    engine.SetCharacterWhitelist("abcdefgh");   // These characters ocr is looking for
    engine.SetCharacterBlacklist("abc");        // These characters ocr is not looking for
    // Now ocr should be only finding characters 'defgh'
};
    

• Bug fixes
• Issue #17 limitation is better represented when jpeg image is loaded as byte[] in Android physical device