Add `gameChannelId`, `gameName`, and `uploadDateISO` in `BaseVideo`

[Hello-May]

Hello, first and foremost, I would like to express my gratitude for creating and maintaining this fantastic library.

We have a project that requires some additional information to be crawled:

1. Game categories content below game-related videos.
   add gameChannelId and gameName fields in BaseVideo.ts

2. uploadDate in YYYY-MM-DD format with the same time zone.
   Two uploadDate can be found in the json data, one of which is the original:

target.uploadDate = videoInfo.dateText.simpleText;

I guess it is the local time zone string.

The other is:

target.uploadDateISO = videoInfo.microformat.playerMicroformatRenderer.uploadDate;

Its format is always YYYY-MM-DD and I guess it's in 0 timezone.

---

I try to write like this as follows:

• BaseVideo.ts

...
/** The date in ISO format this video is uploaded at */
uploadDateISO!: string;
/** The game's channel id that this video related */
gameChannelId!: string;
/** The game's name id that this video related */
gameName!: string;
...

• BaseVideoParser.ts

static loadBaseVideo(target: BaseVideo, data: YoutubeRawData): BaseVideo {
  ...
  target.uploadDateISO = videoInfo.microformat.playerMicroformatRenderer.uploadDate;

  const { endpoint, title: gameTitle } = videoInfo.metadataRowContainer?.metadataRowContainerRenderer?.rows?.at(0)?.richMetadataRowRenderer?.contents?.at(0)?.richMetadataRenderer || {};
  target.gameChannelId = endpoint?.browseEndpoint?.browseId || null;
  target.gameName = gameTitle?.simpleText || null;
  ...
}
...
static parseRawData(data: YoutubeRawData): YoutubeRawData {
   ...
   const { videoDetails, microformat } = data[2].playerResponse;
   return { ...secondaryInfo, ...primaryInfo, videoDetails, microformat };
 }

Print out the result.

const video = await youtube.getVideo("VNwldCV78fU");
console.log("===>", video.title, video.uploadDateISO, video.gameChannelId, video.gameName);

// My Editor Commits War Crimes | Horizon Zero Dawn
// 2023-01-26
// UCzdvNoUM78qdDqjPEXGq9zw
// Horizon Zero Dawn

I'm not sure the naming and writing are correct, please correct me if any wrong.
We hope that this can be implemented as a new feature in the future. Thank you!