Add "indoor" and "night" fields for sound effects

[dseguin]

Summary

None

Purpose of change

Fixes #55095.
Sort of a follow up to #52308.

Describe the solution

Adds the JSON fields "is_indoors" and "is_night" to sound_effect type objects:

{
  "type": "sound_effect",
  "id": "smash_success",
  "variant": "t_gates_mech_control_lab",
  "season": "winter",
  "is_indoors": true,
  "is_night": false,
  "volume": 50,
  "files": [
    "terrain/metal/smash_metal_1.ogg",
    "terrain/metal/smash_metal_2.ogg",
    "terrain/metal/smash_metal_3.ogg"
  ]
}

Using the field "is_indoors" will make it so that the sound only plays if the player is indoors (true) or outdoors (false). If the field is omitted, the sound plays whether the player is indoors or not.

Likewise for "is_night", except for nighttime (true) and daytime (false).

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SFX search pattern optimization

Previously, each individual combination of sound parameters was queried individually. This meant that adding a new parameter effectively doubled the search space, growing exponentially. With just variant and season, the search space was ("the # of sound effects" x 4) + 1. Now that is_indoors and is_night are added, the search space would grow to x 16.

I refactored the search pattern to grow linearly with the number of parameters, which improves the worst case from O(2^n) to O(n). A benefit of the new pattern is that the search order no longer matters (ex: season can be queried before variant without changing the results).

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Describe alternatives you've considered

I could have kept the original search pattern, but as explained above it just wasn't scalable.

Testing

Tested using the soundpack from Fris0uman's repository: https://github.com/Fris0uman/CDDA-Soundpacks

Additional context

TODO:

• Add fields and integrate them with sound functions
• Optimize search pattern
• Testing
• Documentation