Make OpenSpaceModule a properties::PropertyOwner so that it can own properties

Add properties owned by OpenSpaceModule to the global settings engine (closing #104)

include/openspace/engine/settingsengine.h

@@ -29,13 +29,19 @@
 #include <openspace/properties/scalarproperty.h>
 #include <openspace/properties/optionproperty.h>
 
+#include <vector>
+
 namespace openspace {
+    
+class OpenSpaceModule;
 
 class SettingsEngine : public properties::PropertyOwner {
 public:
     SettingsEngine();
 
     void initialize();
+    
+    void setModules(std::vector<OpenSpaceModule*> modules);
 
 private:
     void initEyeSeparation();

include/openspace/util/openspacemodule.h

@@ -25,7 +25,10 @@
 #ifndef __OPENSPACEMODULE_H__
 #define __OPENSPACEMODULE_H__
 
+#include <openspace/properties/propertyowner.h>
+
 #include <string>
+#include <vector>
 
 namespace openspace {
 
@@ -34,7 +37,7 @@ namespace openspace {
  * into a useful granularity to be mostly used self-sufficiently. Each OpenSpaceModule
  * needs a unique, nonempty <code>name</code>.
  */
-class OpenSpaceModule {
+class OpenSpaceModule : public properties::PropertyOwner {
 public:
     /**
      * Constructs the OpenSpaceModule with a specific \p name. The uniqueness of the 
@@ -61,12 +64,6 @@ public:
      */
     void deinitialize();
 
-    /**
-     * Returns the name for this OpenSpaceModule.
-     * \return THe name for this OpenSpaceModule
-     */
-    std::string name() const;
-
 protected:
     /**
      * Customization point for each derived class. The internalInitialize method is called
@@ -85,9 +82,6 @@ protected:
      * path tokens.
      */
     std::string modulePath() const;
-
-    /// The name of this OpenSpaceModule
-    const std::string _name;
 };
 
 } // namespace openspace