Strongly typed abstraction for ArrayFilters

[johnknoop]

repo.UpdateOneAsync(
  filter: show => show.Id == showId,
  update: upd => upd
    .Set(Builders<T>.ArrayFiltersReference
          .SelectArray(x => x.Seasons, "a")
          .ThenSelectArray("b", x => x.Episodes),
      DateTime.Today),
  options: new UpdateOptions {
    ArrayFilters = Builders<T>.ArrayFilters
      .AddFilter<Season>("a", season => season.Year == 2022)
      .AddFilter<Episode>("b", episode=> episode.Number == 5)
  }
)

// genererar reference:
"Seasons.$[a].Episodes.$[b].ReleaseDate"

// Genererar filter:
{
  "a.Year": { $eq: 2022 }
  "b.ReleaseDate": { $eq: 5 }
}

[johnknoop]

var filter = Builders<Channel>.Filter.Eq(x => x.Id, "5e4606e6ae7b090688671416");

var like = new Like() {Name = "new like", Id = "1"};
var episodeId = "5e46071d385a672b0cea0f86";
var trackId = "5e460dbe2bc5e70c9cfeac21";

var update = Builders<Channel>.Update.Push("Episodes.$[e].Tracks.$[t].Likes", like);

var arrayFilters = new List<ArrayFilterDefinition>();
ArrayFilterDefinition<BsonDocument> episodesFilter = new BsonDocument("e._id", new BsonDocument("$eq", episodeId));
ArrayFilterDefinition<BsonDocument> tracksFilter = new BsonDocument("t._id", new BsonDocument("$eq", trackId));
arrayFilters.Add(episodesFilter);
arrayFilters.Add(tracksFilter);

var updateOptions = new UpdateOptions { ArrayFilters = arrayFilters };