v1.2.0

Changes since last release

Features/fixes

• side panel GUI improvements
  • making side panel buttons flat, and put panels in a well that shrinks to a small height when collapsed (instead of being set to invisible). Inspired by Lightroom Classic foldable panels
  • fixing image list drawing glitch
  • fixed histogram y-axis bug.
• adding info panel which shows
  • file name,
  • resolution,
  • 32-bit and 8-bit color,
  • pixel coordinate,
  • ROI, min, avg, and max info

Other changes

• upgrading spdlog submodule to v1.8.5
• removing Eigen and replacing with nanogui's simple vector stuff, own array2d, and Imath::Matrix
• moving demosaicing and dng reading into their own files
• more snake_casing
• returning copy instead of const reference to callback functions (to allowing chaining).