Releasable MVP for the Map view

[abey79]

Initial PR: #6561

Absolute "must" for the first release:

• Visible time range
• Add a global setting to set a mapbox access token #7849
• Interactive entities: selectable and hover tooltip (blocked on Provide Plugin::run() with an egui:Ui podusowski/walkers#197)
  • Implement usual hover and selection interactions in the map view #7938
• Implement panning with touchpad and/or scroll-wheel podusowski/walkers#221
• Map view shouldn't have zoom buttons #7937
• Update the Viewport reference page #7972
• bp api + snippet/screenshot: Improve the blueprint API for the map view #8027
• Assume real-world meters instead of UI unit for "scene unit" Radius values #7872
  • Add support for scene units in the map view #8015
• Introduce the GeoLineStrings archetype and support it in the map view #7968
• docs: Add missing screenshot to GeoLineStrings docs #8084
• Update nuscene example: Add map view to nuscenes python example #8034
• How-to guide: very simple, mostly for discoverability: Add an how-to guide for the map view #8075
• Basic geoXXX example that is included in the viewer: Add an example to display OpenStreetMap-sourced data on the map view #8044
• Map views scroll regardless of where the mouse pointer is #8032
  • Bump walkers to 0.29 #8055
• Brute-force silence the spurious walkers error at shutdown #8078
• Warn when Geo* entities are logged and the viewer wasn't compiled with the map_view feature #8052

OK not to have for the first release:

• Do not silence walkers::download in re_log #8077
• dogfood: update the air traffic data example to use the map view
• Add an overlay to the map view to display the current pointer position #8086
• Add DrawOrder component to the Geo{Points|LineStrings} archetype #7963
• Provide a data loader for GeoJSON #8067
• Remove the map_view cargo feature #7876
• Add a GeoPolygon archetype #8066
• Add Label/ShowLabel component on all Geo* archetypes #8068
• Add an Altitude component on all Geo* archetypes #8087
• Make the current map position a view property #8089
• Remove walkers from the CRATES_AT_INFO_LEVEL list #8090

[gavrelina]

thoughts and ideas!

• Can't pan with 2D scroll podusowski/walkers#210 add support to pan with the trackpad
• allow for transparency of the point styles (within a map context the layer of map actually has important information, so it's great to allow users flexibility to peek it once they need it)
• think of a seamless and easy flow to add mapbox API keys
• I'd propose to change the default style of dots to have some kind of tiny shadow under, because maps are usually very busy with lots of colors and signs already, and now the dots are easily blending in with the rest. so would be cool to think how can we can make it standing out better by default. not urgent, but a nice improvement with time.
• I can also imagine that being able to define different symbols and not only dots would come in handy.
• and a legend!
• and adding labels!

(okay I will stop here, I think the first one is the prio, then the API key flow, and the rest can be added as we go)

[Wumpf]

everything in the must-have list got done!