Added region tags to 3D samples

[oppenheimera]

No description provided.

[snippet-bot]

Here is the summary of changes.

You are about to add 15 region tags.

• samples/3d-camera-to-around/index.ts:40, tag maps_3d_camera_to_around_flyto
• samples/3d-camera-to-around/index.ts:52, tag maps_3d_camera_to_around_flyaround
• samples/3d-marker-collision-behavior/index.ts:23, tag maps_3d_marker_collision_behavior_setbehavior
• samples/3d-marker-customization/index.ts:25, tag maps_3d_marker_customization_pin_border
• samples/3d-marker-customization/index.ts:42, tag maps_3d_marker_customization_scale
• samples/3d-marker-customization/index.ts:53, tag maps_3d_marker_customization_glyph_color
• samples/3d-marker-customization/index.ts:64, tag maps_3d_marker_customization_glyph_text
• samples/3d-marker-customization/index.ts:80, tag maps_3d_marker_customization_extruded
• samples/3d-marker-customization/index.ts:97, tag maps_3d_marker_customization_background
• samples/3d-marker-graphics/index.ts:24, tag maps_3d_marker_graphics_png
• samples/3d-marker-graphics/index.ts:39, tag maps_3d_marker_graphics_glyph
• samples/3d-marker-graphics/index.ts:60, tag maps_3d_marker_graphics_place
• samples/3d-marker-graphics/index.ts:88, tag maps_3d_marker_graphics_svg
• samples/3d-marker-interactive/index.ts:30, tag maps_3d_marker_interactive_interaction
• samples/3d-mesh-flatten/index.html:22, tag maps_3d_mesh_flatten_snippet

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[willum070]

I made comments on a couple of files, but they are globally applicable. Essentially the sub region tags should all begin with the name of the main containing tag, and append. That way you always know which sample a particular region is associated with (macros are viewed out of context, you don't want to make maintainers resort to grepping), and also prevent the possibility of weird issues on the tooling side (not sure if it would but I would err on the side of caution).

[willum070]

Looks awesome, thanks!