DARES: Download files

• As a fetcher conversion script
• I want to read the source files of the provider in a Git repository
• in order to convert them to JSON.

Acceptance criteria

• The source files of the provider MUST be committed to the source repository.
• Some HTML files MUST be committed too to memorize the names of the files and the categories.
• The download script MUST push to the remote repository only if used with the argument --push.