Added a general purpose persistent data storage class
Added a general purpose persistent data storage class

svn path=/trunk/libavg/; revision=5476

th3infinity/libavg,yyd01245/libavg,scotty007/libavg,hoodie/libavg,yyd01245/libavg,hoodie/libavg,libavg/libavg,libavg/libavg,libavg/libavg,scotty007/libavg,libavg/libavg,yyd01245/libavg,scotty007/libavg,th3infinity/libavg,hoodie/libavg,th3infinity/libavg,th3infinity/libavg,scotty007/libavg,yyd01245/libavg,hoodie/libavg