Crawling results decoder (fcs.content_file_decoder)

Script unpacking *.dat files, results of crawling. Proper usage:

python script.py <file_location> <unpacked_directories_structure_location>

Script creates tree of directories. In every leaf directory there are two files - url_links.txt (page URL in first line, extracted links separated with whitespace in second) and content.dat containing decoded from Base64 resource. At higher level directories with names of integers are stored. Additionally, file index.txt links directory name with page URL.