feat: add neutral token drops data

[Antosik]

Description

This small PR adds the ability to track the neutral tokens drops

Output changes

After Java processing, new lines will be added to the output in the following format:

{"time":434,"type":"neutralToken","key":"Tier1Token","slot":0}

After Node.js processing, a new field neutral_token will be added to the player object, which will look like this:

{
  // ...
  "players": [
    {
      // ...
      "neutral_tokens_log": [
        {
          "time": 1628,
          "key": "Tier3Token"
        },
        {
          "time": 2299,
          "key": "Tier4Token"
        }
      ]
    }
    // ...
  ]
}