Consider supporting mixed if-domain / unless-domain for cosmetic rules

[ameshkov]

Here's the idea:

example.org,~sub.example.org##.banner

Could be converted to something like that:

{
    "url-filter": "example.org",
    "unless-domain": ["*sub.example.org"]
}

[ameshkov]

This approach is confirmed to be working.

Here's an example:

agrd.dev,~httpbin.agrd.dev##body

Can be converted to this:

[
  {
    "action" : {
      "type" : "css-display-none",
      "selector": "body"
    },
    "trigger" : {
      "url-filter" : "^[htpsw]+:\\\/\\\/([a-z0-9-]+\\.)?agrd.dev([\\\/:&\\?].*)?",
      "unless-domain": ["*httpbin.agrd.dev"]
    }
  }
]

• httpbin.agrd.dev -- nothing is hidden
• testcases.agrd.dev -- body is hidden