Credentials address: Add * as match all

[alexcos20]

For credentials type addresses we need to have a value that matches any address.

Example:

{
  "credentials": {
    "allow": [
      {
        "type": "address",
        "values": ["*"]
      }    
    ],
    "deny": [
      {
        "type": "address",
        "values": ["0x2222", "0x333"]
      }
    ]
  }
}

This means any address is allowed, except for '0x2222' and '0x333'