This is currently only used for level 4 instrumentation,
as these start and stop markers were messing heavily with
dependencies in the sum factorization code. This way, the necessary but
ugly work of adding instrumentation is separated much more
nicely.

It is not necessary anymore

Instationary stuff not fixed so far.

It's completely unmaintained andI doubt that it will
at some point what it was intended for...

This reverts commit c33945c3.

Make anisotropic quadrature order possible for non DG examples.

It should be possible to have multiple of these with different increment