Create pdfparser.py

This script takes a PDF document and parses through looking for IP's, URL's and Domain names to extract either individually, or all three at once.
    All of the output is written to .csv format.  The search of TLD's finds both TLD's and gTLD's to parse out. It will also 
    compensate for different notations, searching for both '.' and '[.]' formats that are commonly used for indicating malicous sites when
    looking Domains, IPs, amd URL's.