Adding script files

fieldexists - check if a specified field exists in the given flight data
findStartingLocationAndEndingLocation- find the start and end locations
to do the data sampling for the given flight data
frobeniusSimilaritySyn - does all the work (comparison of different
similarity techniques)
getMatFiles - gets the *.mat files from a given directory and converts
it into a txt file using mat2txt script
mat2txt - converts the *.mat file into a *.txt file - readable by sql
(directly import to DB)
subSamplesItBasedOnRate - since each flight has a different rate for
it's features (this script does the normalization based on the rate
specified for each feature of the flight data)