- added new TopologyRefiner member to detect presence of irregular faces
- added new Vtr::Level::VTag to indicate vertex incident an irregular face
- populated new VTag bit when irregular faces present
- updated refinement to clear new bit for refined faces
- branch adaptive refinement in linear cases to avoid testing features
- updated feature detection for irregular faces -- now a simple bit test
- updated PatchBuilder with now-trivial test for incident irregular faces
- clarified handling of isolated/unisolated features in IsPatchRegular()
- simplified GetPatchBoundaryMask() to make use of bit masks
- removed private method supporting approx-smooth-corner-as-sharp option
- removed debugging tests verifying irregular patch points
- Far::PatchBuilder additions to identify spans around non-manifold corners
- re-organized patch regularity test to inspect individual corner features
- updated partial span gathering function to handle non-manifold cases
- ensure vertex tag xordinary bit remains unset when non-manifold
- extended patch construction in base PatchBuilder to support triangles
- added extraction of regular triangular patches to base PatchBuilder
- converted irregular patches to supported patch types in LoopPatchBuilder
- new PatchTableBuilder class now implements PatchTableFactory::Create()
- population of tables now independent of scheme or patch type
- nested LocalPointHelper handles local point sharing and stencils
- new PatchBuilder class encapsulates patch queries and conversions:
- provides patch types associated with schemes and client options
- handles all topological queries about patches in the base class
- subclasses for the three subdivision schemes to support conversions
- conversions encapsulated in new SparseMatrix class for re-use
- removed Far end-cap factory classes and Far::GregoryBasis
- extended adaptive refinement to support Bilinear scheme (not enabled)
- extended Vtr::StackBuffer to avoid compiler inefficiencies
