set up basic structure
implemented most of the equivalence classes for resulting elements of collapsed nodes
generalised quad/tet creation
renamed coplanar() to isCoplanar()
finished possible deformations for all element types
added subdivision of elements if they are not planar
remove dummy.cpp
added tests and cleaned up main
added method for returning number of collapsable nodes
replaced a few for loops with iterators
added necessary includes
add NumLib/TimeStepping in CMakeLists.txt
add TimeStep class
add ITimeStepAlgorithm
add fixed time stepping
add iteration number based time stepping
add a helper function to output vector entries
add tests for TimeStep
add tests for time stepping
set up basic structure