renamed from line_cut.cpp
added line cut example
added coarsen_linemesh, generate_triangle, hyperplane_clip, project_mesh
Fixed description
Added new tools: coarsen_linemesh, generate_triangle, hyperplane_clip, project_mesh
added dynamic_point for points with unknown geometric dimension
added erase_all and vector_from_string
moved determinant to viennagrid/algorithm/geometry, added is_in_segments to XML parser
Automatic detection of geometric dimension based on point coordinates
added algorithm for clipping a mesh based on a hyperplane
added algorithm: line cuts line geometry
project a geomtry to lower dimensions
added multi-segment support
added new algorithms
added vgmodeler algorithm