Created classes for PlanetGeometry

Added SimpleSphereGeometry
Created infrastructure for added other geometries

include/openspace/util/constants.h

@@ -55,9 +55,19 @@ namespace renderable {
     const std::string keyType = "Type";
 } // namespace renderable
 
+namespace renderableplanet {
+    const std::string keyGeometry = "Geometry";
+} // namespace renderableplanet
+
+namespace planetgeometry {
+    const std::string keyType = "Type";
+} // namespace planetgeometry
+
+
+
 namespace ephemeris {
     const std::string keyType = "Type";
-}
+} // namespace ephemeris
 
 }  // namespace constants
 }  // namespace openspace

include/openspace/util/factorymanager.h

@@ -29,9 +29,6 @@
 #include <ghoul/misc/templatefactory.h>
 #include <ghoul/logging/logmanager.h>
 
-#include <openspace/scenegraph/ephemeris.h>
-#include <openspace/rendering/renderable.h>
-
 namespace openspace {
 
 class FactoryManager {
@@ -54,7 +51,7 @@ public:
     void addFactory(ghoul::TemplateFactoryBase* factory);
 
     template <class T>
-    ghoul::TemplateFactory<T>* factory();
+    ghoul::TemplateFactory<T>* factory() const;
 
 private:
     FactoryManager();

include/openspace/util/factorymanager.inl

@@ -25,7 +25,7 @@
 namespace openspace {
 
 template <class T>
-ghoul::TemplateFactory<T>* FactoryManager::factory()
+ghoul::TemplateFactory<T>* FactoryManager::factory() const
 {
     for (ghoul::TemplateFactoryBase* factory : _factories) {
         if (factory->baseClassType() == typeid(T))