v0.2.0 Updates for GoMLX v0.24.x

Updated to the new directory organization.

v0.1.2 Added `layers.SparseSoftmax`.

Added layers.SparseSoftmax.

v0.1.1 Edges creation and manipulation

• geometry.RadiusEdges: returns edges between the source and target points that are within a give radius.
  It works for arbitrary dimensions (2D, 3D, etc.).
• geometry.NearestEdges: returns the edges between each source point and its closest target point.
  It works for arbitrary dimensions (2D, 3D, etc.).
• graph.UnionEdges: returns the union from a list of edge sets.
• graph.SortEdgesBySource: sort edges by source id.