GitLab

- generic isoSurfaceBase. Provides simpler cell-cut detection and
  various functions that can be used for iso-surfaces or when
  preparing prefiltered input for iso-surfaces.

- rudimentary runtime selection

ENH: isoSurface Cell/Topo uses the isoSurfaceBase infrastructure

- simpler cell cut detection, common routines
- ensure that tetMatcher is only called once per cell

ENH: use indirect patch during edge erosion

- lower overhead, allows backtracking (future) if needed

- The writers have changed from being a generic state-less set of
  routines to more properly conforming to the normal notion of a writer.
  These changes allow us to combine output fields (eg, in a single
  VTK/vtp file for each timestep).

  Parallel data reduction and any associated bookkeeping is now part
  of the surface writers.
  This improves their re-usability and avoids unnecessary
  and premature data reduction at the sampling stage.

  It is now possible to have different output formats on a per-surface
  basis.

- A new feature of the surface sampling is the ability to "store" the
  sampled surfaces and fields onto a registry for reuse by other
  function objects.

  Additionally, the "store" can be triggered at the execution phase
  as well

- Allows passing of additional information (per-face zone ids) or possibly
  other things, while reducing the number of arguments to pass.

- In sampledTriSurfaceMesh, preserve the region information that was
  read in, passing it onwards via the UnsortedMeshSurface content.

  The Nastran surface writer is currently the only writer making use
  of this per-face zone information.
  Passing it through as a PSHELL attribute, which should retain the
  distinction for parts. (issue #204)

- New boundaryData surface writer
- Moved templated code into separate files
- Output filenames written to functionObjectState dictionary
- Ensight surface writer now supports a 'collate times' option [mattijs]
- Nastran surface writer updated based on user feedback

- New boundaryData surface writer
- Moved templated code into separate files
- Output filenames written to functionObjectState dictionary
- Ensight surface writer now supports a 'collate times' option [mattijs]
- Nastran surface writer updated based on user feedback

- easier (more logical) when adding a new writer

ENH: add surface field  writer for 'starcd' format

- creates *.usr files, which can be read in proSTAR with the 'getuser'
  command, but which can also be parsed directly since the format is
  extremely primitive