NmzIntegrate 1.2beta

some more threadprivate data
use some more precomputed numbers
refactoring: extract hyperplane in/excluded test
partial triangulation in full triangulation

For pyramids where the partial triangulation is switched to full triangulation
(currently for level >=3) simplices that are not needed by the partial
triang (incl. duplicate avoidance) are now not transfered to the top cone for
evaluation.
Fix in the usage of FreeSimpl

When splicing free simplices from the FreeSimpl list in the thread private
version the iterator was increased once too much. This caused an error if it
went over List.end().
nix