core: meta-functions for geometry types

Classes
struct	ggl::coordinate_system< G >
	Meta-function which defines coordinate system for any geometry. More...
struct	ggl::coordinate_type< G >
	Meta-function which defines coordinate type (int, float, double, etc) of any geometry. More...
struct	ggl::cs_tag< G >
	Meta-function returning coordinate system tag (cs family) of any geometry. More...
struct	ggl::dimension< G >
	Meta-function which defines coordinate dimensions, i.e. the number of axes of any geometry. More...
struct	ggl::exception
	Base exception class for GGL. More...
struct	ggl::geometry_id< Geometry >
	Meta-function the id for a geometry type. More...
struct	ggl::interior_type< Geometry >
	Meta-function defining container type of inner rings of (multi)polygon geometriy. More...
struct	ggl::is_linear< Geometry >
	Meta-function defining "true" for linear types (linestring,ring), "false" for non-linear typse. More...
struct	ggl::is_multi< Geometry >
	Meta-function defining "true" for multi geometries (multi_point, etc). More...
struct	ggl::is_radian< CoordinateSystem >
	Meta-function to verify if a coordinate system is radian. More...
struct	ggl::point_order< Geometry >
	Meta-function which defines point type of any geometry. More...
struct	ggl::point_type< Geometry >
	Meta-function which defines point type of any geometry. More...
struct	ggl::ring_type< Geometry >
	Meta-function which defines ring type of (multi)polygon geometry. More...
struct	ggl::tag< Geometry >
	Meta-function to get the tag of any geometry type. More...
struct	ggl::topological_dimension< Geometry >
	Meta-function returning the topological dimension of a geometry. More...