Changes the design of the plugin to work with multiple, independent
high-precision hierarchies at the root with the `BigSpace` component at
the root of each of these hierarchies.
Closes#17Closes#19Closes#21
Adds the concept of reference frames, allowing hierarchies of high
precision objects, e.g. objects in the reference frame of a planet,
which is itself rotating, and orbiting about a star.
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Co-authored-by: Oliver Scherer <github@oli-obk.de>
Currently, when the `FloatingOrigin` component is removed from one
entity and added to another, no `GlobalTransform`s are updated. This can
cause problems for things like switching between playable characters
that are in different `GridCell`s.
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Co-authored-by: Aevyrie <aevyrie@gmail.com>
