Added a new function called "getSag" which is found in "SSmultiFxn.R." For the example, I had to add another example dataframe called "dfsags." I also added a dataframe called "dfFluor" which is used for the example in "VectorizedTo3DArray". I updated the dataInfo.R file to reflect the addition of these dataframes. I also went thorugh the dataInfo.R file and added more information for each example dataframe.