Deprecate the "--abstract" and "--concrete" options for wrapper
tools.  Also deprecate specifying an output file without "-o",
and remove the old "infile [hintsfile] concrete outfile" calling
convention, which hasn't been used since VTK 5.6 and was broken.

The wrappers now ignore the ABSTRACT property in cmake, instead
they automatically detect concrete classes by searching for the
New() method.

Some classes were marked as ABSTRACT, even though they had a New()
method that returned a valid instance.  The ABSTRACT property
has been removed from these classes, for consistency.

Note that the vtkInstantiator classes still rely on the ABSTRACT
property, so the ABSTRACT property cannot yet be removed from the
cmake files.

Change-Id: I05ebf42e69367fd4ce7256864a25d1f0c16ed4b8