RF Basic Libraries

These class is the containers of RF basic libraries.

Substrate	Small helper that groups the four basic substrate parameters used throughout the library.
Material	Generic material definition.
Conductor	Metallic conductor material with electrical conductivity.
Dielectric	Dielectric material with relative permittivity and loss tangent.
Layer	Physical layer inside a stackup.
MetalLayer	Convenience wrapper for metallic layers.
DielectricLayer	Convenience wrapper for dielectric layers.
MicroStripTechnologyStackup	Pre-defined micro-strip stackup with bottom metal, substrate and top metal.