Expose propertyFlags to CFFI and MinimalLib (#7960)

* - added property support to CFFI library
- added propertyFlags JSON parser
- added support for setting propertyFlags to MinimalLib

* added missing files

* fix SWIG builds

---------

Co-authored-by: ptosco <paolo.tosco@novartis.com>

Code/JavaWrappers/ROMol.i

@@ -192,6 +192,7 @@
 %include "enums.swg"
 %javaconst(1);
 #endif
+%include <RDGeneral/BetterEnums.h>
 %include <GraphMol/MolPickler.h>
 #ifdef SWIGJAVA
 %javaconst(0);