* Add new file from Hui Zhang with B-field and adaptive limits (possibly closer to original)
* Fix some comments
* Adhere to coding style
* Add BANDRF script to CMake
* Remove old script with hardcoded values to reduce duplication
* Make Efield and Bfield input optional

See merge request !281

update required cmake version to 3.1 after change in 0e771d47; cleanup: cmake version only required at top level

first draft of 'MultiSlitLanguage'; action has to be developed yet; goal is to have a vector of basic shapes (rectangle and ellipse sofar) with corresponding coordinate transformations

This reverts commit 69985bb1.

move SDDSParser from OPAL to Opt-Pilot and OpalSimulation from Opt-Pilot to OPAL to avoid a dependence of Opt-Pilot from OPAL