With both `--match` and `--dl-override`, it is now possible to more easily experiment with subscriptions without needing to create a separate file.
For example, suppose you are changing some values in your subscription "Rick A" and want to test them out. You can now run:
```
ytdl-sub sub --dry-run --match Rick --dl-override '--ytdl-options.max_downloads 3'
```
This will
1. Dry-run
2. Only run for the subscription "Rick A"
3. Apply setting max_downloads to 3
Creates standardized prebuilt presets for music videos. Preset names are:
```
"Kodi Music Videos"
"Jellyfin Music Videos"
"Plex Music Videos"
```
Usage can be found in the `examples/` directory
Closes GH Issue #766, partially closes#520
Prior to this release, no other subscriptions would download if a subscription before it had an error. Now, subscriptions will continue to download even if one has an error, and will be reported in the output summary.
