Jordan Feldstein 93ee06247d Count and report progress based on expected total
Algorithm appears to freeze without progress while `extent_engine.intersects(geom.constGet())` returns false. 

This keeps the progress bar continuous and smooth, even if the feature ends up not being added.

(noticed this because the algo hangs for 2 mins while processing a large dataset which I think is outside the extent somehow. None of the points going in. No apparent progress.)
2018-08-15 10:23:02 +10:00
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