Export list of rules as JSON

[baruchiro]

Warning

Please wait with this issue, we are discussing with our Product Manager to consider this issue.

There is an option to run 2ms rules and list all the available rules (filtered by --include-rules and other arguments).

An internal user requested an option to print the rules in JSON format to easily parse it and display it to the user.

Need to add a flag --json that will print the rules as JSON.

{
  "rule id": {
    "description": "rule description",
    "tags": ["tag1", "tag2"]
  }
}