Kittyfisto/IsabelDb

Implement IPoint2DCollection using RTree, if beneficial

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If rtree is natively available in System.Data.Sqlite:

Test if replacing the current implementation can be significantly improved by using the rtree module of sqlite:

  • What's the difference in required size?
  • How does insertion performance differ?
  • How does query performance improve?

If deemed beneficial, then rtree shall be used. Given it's limitations, it then makes sense to switch from double to float again as to not waste any space converting the two values.