Feature/more geometries v2
Include new geometries:
- multilayer_line_trace (1D) with arbitrary thicknesses, spacings and lcs for each layer
- bilayer_line_trace (1D) which simply uses multilayer_line_trace
- monolayer_line_trace (1D) which simply uses multilayer_line_trace
- round_wire_cross_section_refined which allows to use local mesh refinement