feat: add stats output

[cfabianski]

Description

Introduces a new stats report format

It looks like this for GitLab

{
  "number_of_lines": 2813694,
  "number_of_data_types": 25,
  "data_types": [
    { "name": "Age Range", "occurrences": 4 },
    { "name": "Browser Fingerprint", "occurrences": 12 },
    { "name": "Country", "occurrences": 2 },
    { "name": "Credit", "occurrences": 9 },
    { "name": "Email Address", "occurrences": 347 },
    { "name": "Emails", "occurrences": 46 },
    { "name": "Firstname", "occurrences": 14 },
    { "name": "Fullname", "occurrences": 294 },
    { "name": "Geographic", "occurrences": 14 },
    { "name": "Group Membership", "occurrences": 41 },
    { "name": "Health Records", "occurrences": 1 },
    { "name": "IP address", "occurrences": 4 },
    { "name": "Image", "occurrences": 54 },
    { "name": "Interactions", "occurrences": 45 },
    { "name": "Interests", "occurrences": 4 },
    { "name": "Job Titles", "occurrences": 5 },
    { "name": "Lastname", "occurrences": 13 },
    { "name": "Likes", "occurrences": 2 },
    { "name": "Links clicked", "occurrences": 2 },
    { "name": "Passwords", "occurrences": 136 },
    { "name": "Physical Address", "occurrences": 14 },
    { "name": "Spoken Languages", "occurrences": 17 },
    { "name": "Telephone Number", "occurrences": 24 },
    { "name": "Unique Identifier", "occurrences": 223 },
    { "name": "Username", "occurrences": 415 }
  ]
}

ToDo

• Update LoC to use only the file we really scanned (will be done in another PR)

Checklist

• I've added test coverage that shows my fix or feature works as expected.
• I've updated or added documentation if required.
• I've included usage information in the description if CLI behavior was updated or added.
• PR title follows Conventional Commits format

[swarmia]

✅  Linked to AMA-3165 · Benchmark Output
➡️  Part of AMA-2947 · OSS - Curio CLI