Renamed OpenSpaceModule's initialize method to create

Created new initialize method that gets called in OpenSpaceEngine initialize

modules/base/basemodule.cpp

@@ -55,8 +55,8 @@ BaseModule::BaseModule()
     : OpenSpaceModule("Base")
 {}
 
-bool BaseModule::initialize() {
-    bool success = OpenSpaceModule::initialize();
+bool BaseModule::create() {
+    bool success = OpenSpaceModule::create();
     if (!success)
         return false;
 

modules/base/basemodule.h

@@ -32,7 +32,7 @@ namespace openspace {
 class BaseModule : public OpenSpaceModule {
 public:
     BaseModule();
-    bool initialize() override;
+    bool create() override;
 };
 
 } // namespace openspace