Create function to do a upload image for candidate

Create that function to get all files in directory that you extract the
photos, and if the info candidate has a image name equal to in these
files then do a save image.
Alter a list filter in candidate admin
Change the vice field to foreign key

Alter this field because a vice it is a Candidate object too. Add a
boolean field to reference if a Candidate has a vice or not.

The main positions that has a vice are: president, governor, senator,
mayor
Create a settings config to opps.tse
Fix a process_upload call

Add the parameter photo_directory that recives the opps settings config
and change the parameter in process_upload call function
Add new opps settings