move disdb.py to dmetrics and disdbfactory.py to factories.
commented out APKDirectoryFactory
move irplot.py to rplot.py. We don't need to add the i from my point of view in python.
xyplot and histogram use rplot as the interface class
XyPlot takes the x and y axis data as parameters.
histogram and xyplot code for plotting graphs.
predictions visualizer
disdb is tuple that can be better suited for other tasks
ramresidengraph returns graph with nodes id set to be unique numbers