v3.5.0

Minor Changes

• 1c5ef34: Add Legend component for maps and data displays, with threshold, continuous, diverging, categorical, and proportional-symbols modes and an optional no-data swatch.
• 1c5ef34: Add an optional legend snippet to TileMap so a legend and map can share a single GraphicBlock, with one title and the standard block spacing, instead of being stacked as separate blocks.