added corresponding test-cases switched to newer version of tinyxml due to some issues adjusted affected code-parts accordingly for better re-use, moved ceiling-calculation to a new class some minor fixes new helper methods worked on wifi-opt
worked on grid-generation (v2) new helper methods for geometry new test cases
new helper methods/operator toe geo classes
added new test-cases added flexible dijkstra calculation added debugging log modified: plotting, grid-generation, grid-importance, refactoring
