make utility script

[danparshall]

We should have a script which has utility functions for reading and writing various datafiles. In particular, this file should be the single-source-of-truth for defining the datatypes.

Standard files to start with:

• registration data
• parsed names
• namecounts

After this is running, all reads and writes should be done using the utils.py file, rather than keeping random data within the other scripts.

[juan-andres-russy]

utils.py script is located on src/test/ and is called whenever a read or write of files occurs