stl reads points in double precision

In v1612+ triSurface reads points in single precision, in develop it is double precision.

I think this is OK. Binary should read as float internally, ASCII should send the points across as scalar (float or double) to avoid copying

We made the stl reading single precision to save memory (during the reading).

assigned to @mark

mentioned in commit 475c47e0d99a5c0e4a507292746d0cf541a238ee

mentioned in commit cbc6917e96d834336c1f54efd82082147e79c1cf

closed