Add new alternative names for the 1d quadrature rules

In particular:

- GaussLegendre as a future replacement for Gauss
- GaussJacobi_1_0 as a future replacement for Jacobian_1_0
- GaussJacobi_2_0 as a future replacement for Jacobian_2_0

The latter two names don't really fit with the Dune 'no underscore'
naming rule, but no better way to fit the numbers into the name come
to my mind.
Use the new names for the one-dimensional quadrature rules
Merge branch 'master' of https://git.dune-project.org/repositories/dune-geometry