All quadrature rules are moved to subdirectory
quadraturerules, with a common filename scheme. The whole implementation for each rule is now put into one file. Therefore, the .mac scripts are adapted to generate these file structure directly.
The quadrature rules must be generated using maxima <= 5.38.1
This is the first step of a cleanup and redesign of the quadrature rules: 1.) put all rules into a similar structure. 2.) cleanup of the classes QuadratureRules and QuadratureFactory, 3.) Automatically generate coefficients for all rules with higher precision