Add several runtime optimisations relating to screen capture

[StaticSweep]

• Add MouseOver.getText() utility to return all text in the MouseOverText zone regardless of colour.
• Idler holds the colour variables for less runtime overhead.
• Changed Minimap.getXP() to return Integer rather than String.
• Drastically improve ScreenManager zone extraction speed.
• Drastically improve Ocr speed through memory management and font map optimisation.
• Add abstraction to extract text from a CU81 Mat object directly to reduce BufferedImage conversion overhead.
• Add more attempts to MovingObject.
• Add Morphological closing to default ColourContours behaviour to minimise attempts, reduce duplicate contours and to make contour extraction robust.