Solves part of #1510

• Updates image enhancements to have independent sliders for:
  • Brightness
  • Contrast
  • Saturation
  • Sharpen
• Sharpen is a little different because it's using a FeConvolveMatrix with the nearest pixels to attempt a similar effect to sharpening.
• imageEnhancementOutputs is a collection of the above values and is passe to the annotators for implementation inthe SVG filters
• isDefaultImage is true when the default values are being used
  • This is used to provide a little orange dot at the bottom right of the imageEnhancements Icon/Button.

A Subsquent PR is going to hook this data into the saving system where it will be saved similar to the confidence threshold. This would allow anyone to adjust the image settings and have it persist so others see the same thing.