Fix: Added includes, now build pipeline runs through

The errors were caused by missing includes in SFStudySetup.h (that were marked as "possibly unused" in VS). This lead to a problem, where the UPROPERTY()-macro was not properly recognised because the type of object declared as UPROPERTY() was not known due to the missing includes. The error that appeared was a syntax error because the UPROPERTY() macro was not properly handled by the build tool and remained in the code as if it was standard C++.