This helps caller to set fix the min/max lines as we can provide
information about where the point is expected.

We should now avoid dumping the same data several time (in sensors LOS,
datation and rate), and we use linear interpolation on replay between
the dumped LOS, datation and rates.

The replay does not work correctly for now (the unit test fails), so
this needs more work.

This feature is useful when replaying debug dumps, as only a very small
subset of tile cells are usually dumped (hence numerous cells are not
known).

The previous name was confusing as another mechanism for debugging also
use the term 'dump' for something not related to interpolator reuse.