Text to collider

[Vrixyz]

This could be used to create a demo similar to taichi mpm's text particles:

How it works

• print particles from an example through read_particles_positions
  • TODO: this would benefit being an exposed function from the library.
• print those positions in a file, so we can use that file to color it in another step.
  • It's made in 2 steps to give the opportunity to debug the positions, and avoid coupling coloring and the example. A script could be made if desirable. In particular, a simulation not throttled by rendering would be interesting.
• The new package text_to_collider handles the logic for detecting positions inside a text, and the example color_to_position can be launched to obtain the colors for the positions previously saved.
• once colors are created, they can be retrieved from an example: https://github.com/dimforge/wgsparkl/pull/7/files#diff-ec6848f5bd6e2e287e9dd3cefbc75f325b01e48a827d65c9b66fa98cef7c11d5R29-R35

[Vrixyz]

to remove