Rebuilding the minecraft screenscraper to be much more robust

[AsherGlick]

• The Minecraft window no longer needs to be in an exact position
• The number of pages in the creative menu is automatically determined based on scrollbar position
• A single screenshot is take to get all of the item images at once, instead of one per item
• The minecraft OCR tool now stops searching for letters at the end of the infobox, making it much easier to spot errors in the OCR
• The minecraft OCR tool now only looks for the specific font colors minecraft uses to better identify text, though this may be reverted due to the previous feature removing many strange edge-cases we ran into in the past