I wrote them years ago mainly because I thought they should exist.
But they were never actually used them for anything, and I don't
really know were they could be used either.  Supposedly they
could be useful for implementing problems without a minimization
formulation, but that's not currently planned, and I don't know
what the precise requirements would be, either.

Since the code is short and almost trivial, and easily resurrected,
this commit removes the two files.  For newcomers this will mean
two less files to wonder about.

Introduce a dedicated class LocalQuickAndDirtyFEFunction to produce initial iterates for the GFE minimization problems

Previously, a LocalProjectedFEFunction was used for this.  This turned out to be a bad idea for two reasons:
- Evaluating such a function can actually pretty expensive.  For example,
  to project onto SO(3), the polar decomposition needs to be evaluated by
  an iterative method.
- Screwing up the LocalProjectedFEFunction implementation can actually screw up
  the GFE implementation as well in very subtle ways.  Specifically, if the
  LocalProjectedFEFunction is not ADOL-C-differentiable, then the GFE function
  will not be differentiable, either.  This fact cost me a few hours searching...

This is the interpolation method used by Ingo Münch and Wolfgang Müller for
Cosserat materials.  My implementation is only able to do all that I needed
for the illustrations in the GAMM Rundbrief article.  I'm sure there'll be
more fixes needed if you actually want to do finite elements with this.

[[Imported from SVN: r9940]]

As of yet completely untested

[[Imported from SVN: r9898]]

[[Imported from SVN: r9682]]