[GeoLib] Another version for GEOObjects::getGeoObjects().

The PR is a preparation to access GeoObject objects via the geometry
name and the object name (patch name).
The names of points are stored in a map. Only names specified by the user (given in the gli, gml or shape file or set in the DataExplorer) are stored. So time for searching shouldn't be an issue. Anyway, let me know if you (@norihiro-w)  think I should reverse the order.