Add Color view

[vedants15]

Summary

Color view compares a live I2C color sensor against an expected color, aimed at answering "is my color sensor seeing what I think it's seeing?" at the field.

• Type a hex, rgb(r, g, b), or bare r, g, b — or pick from presets (Red, Orange, Yellow, Green, Blue, Purple, White, Black)
• Side-by-side Expected / Sensed swatches with a stats table (hex, RGB, hue, sat, val) and a ΔE tolerance that drives a Match / No match badge
• Matching uses CIEDE2000 on brightness-normalized colors, so a correct hue/saturation reading matches regardless of ambient light or distance to the object
• Normalization modes (auto / 8-bit / alpha / manual divisor) for sensors that report raw counts on different scales
• HardwareOpMode now also publishes the sensor's alpha channel

Testing

• Mock server: TestColorSensorOpMode (run with ./gradlew :DashboardCore:runTestServer)
• On-robot: ColorViewDemoOpMode in TeamCode
• Verified in the browser in both light and dark mode (see screenshots/video)

color-and-looptime-demo.mp4