* Added translator to lsToDiskMesh to refer back to original pointID from mesh nodes
* Added curvature calculation and feature detection
* Added external projects to cmake build so dependencies are built automatically
* Added wrapper functions SLLF scheme, which sets up level sets to use the correct layer wrapping
* Added option for lsPrune to remove exact zeros, which is useful for Boolean operations
* lsBooleanOperation now does 2 cycles of pruning: first removing exact zeros, then pruning normally
* lsVTKReader/Writer now automatically deduce file type based on the file ending of the passed file name
* lsGeometricAdvectionDistribution::getSingedDistance now requires additional parameter "initialPointID" which refers to the pointID of the initial point in the LS structure, which allows the function to access point data, such as surface normals, connectivity or curvature