modifying python merge mosaicing option

adding match extent option to mosaicing

testing removal of matching for python part of script

wrapper function for python option in mosaicing files

mosaicing function adding python and R options to mosaicFile

testing plotting of mosaics

testing modification to mosaicing functions on 5 days

testing mosaicing code with python option on NEX

debugging code for mosacing with new options and plot screen function

testing python option on NEX