Code change part 1

We wrote in python code. So far what we add is the input function format
and mdls function if they user didn't choose to do a recursive look up
on a current path.
Added in recursively finding all files and their absolute paths of the specified folder

Tried to use subprocesses, but it didnt seem to work at first.
Ended up sticking with os.system, but would like to get off this in the future.
Also, there were some tab/space indentation problems I was running into which caused this to take much longer than I wanted.
Updated section 3 with outlook on program
Made fileLst accessible in both instances (y or n)
Merge pull request #2 from Linkeage/master

Code change part 1