There was some problem with my editor and lost some code, this work is
fixing that and adding new features. Current state of the code:
* capturing CertStream traffic
* saving raw certstream objects in a custom wrapper
* extracting fingerprints and domains from the certstream object
* saving fingerprints and domains nodes and edges between them.
* fingerprint is linked to the raw certstream object with an edge
* saving to files with customizable names (raw in code)
broker:
* kafka connection and test
* no sending of data to it for the moment
This work refactors saving and extracting function from the utils
package to the models package as it is a main component of the tool.
`utils` will take care of not related to models functions (such as
finding the files for example).
Also creating unique files for each type of source we are parsing.