git-svn-id: https://geuz.org/svn/gmsh/trunk@19662 59c8cabf-10d6-4a28-b43f-3936b85956c4
Add FuncSpaceData to make use of Bases simpler and more powerful. 
Add a validation code in MetricBasis to check that the process: "computation of Bézier coeff, subdivision and interpolation" is correct for Metric (thus also for Jacobian in 3D).


git-svn-id: https://geuz.org/svn/gmsh/trunk@19663 59c8cabf-10d6-4a28-b43f-3936b85956c4