News informations (#53)

* News informations

Informations about SPIP, GLPI and PACS NGI GXD5

* Update chopchop.yml

News informations added :

AudioCodes SIP Gateway
Xerox Printer
Lexmark Printer
Aklia Lisis

We added a new attribute `uris` which allows a list of URI. (#49)

`uri` and `uris` can't be specified at the same time.

One example configuration file is as follow:

```yaml
  - uris: ["/db.sql", "/db.sql.gz", "/db.sqlite", "/db.sqlite.gz", "/db.sqlite3", "/db.sqlite3.gz", "/data.sql", "/data.sql.gz", "/users.sql", "/users.sql.gz", "/dump.sql", "/dump.sql.gz", "/mysqldump.sql", "/mysqldump.sql.gz", "/backup.sql", "/backup.sql.gz", "/db.backup", "/db.backup.gz", "/database.sql", "/database.sql.gz", "/db-data.sql", "/db-data.sql.gz", "/db_test.sql", "/db_test.sql.gz", "/db-test.sql", "/db-test.sql.gz"]
    checks:
      - name: Database file
        status_code: 200
        remediation: Delete this file
        description: Verifies a database dump is accessible.
        severity: "High"
```

And we tried it using:

```bash
./gochopchop scan -u http://127.0.0.1:3000 --timeout 1 --csv --csv-file boo.csv -c policy.yml
```

Closes #2

Read from an ioutil.ReadAll without losing HTTP response content (#46)

Added Github Actions workflow to build ChopChop (#11)