Adds new integration [gcorgnet/sensor.emby_upcoming_media]

[gcorgnet]

Before you submit a pull request, please make sure you have done the following:

• You are submitting only 1 repository.
• You repository is compliant with https://hacs.xyz/docs/publish/start
• You have tested it with HACS by adding it as a custom repository.
• The list are still alphabetical after my change.

[hacs-bot]

Running checks on gcorgnet/sensor.emby_upcoming_media

[hacs-bot]

Running checks on gcorgnet/sensor.emby_upcoming_media

[gcorgnet]

Not sure why the HACS/Validate step fails with "No hacs.json file in the root of the repository." as my repo definitely has one (and the "Common repository check" steps actually succeeded, even)

[ludeeus]

Common repository checks checks default brach.
Validate with HACS checks the thing that HACS actually would use (latest release)
https://github.com/hacs/default/pull/390/checks?check_run_id=637708653#step:6:11

[hacs-bot]

Running checks on gcorgnet/sensor.emby_upcoming_media

[hacs-bot]

Running checks on gcorgnet/sensor.emby_upcoming_media

[hacs-bot]

Your repository is now added to HACS 🎉

Here is a few resources that can be useful:

• HACS Discord If you have questions about HACS this is the best place for it.
• Home Assistant Developer Blog Make sure you stay up to date.
• Home Assistant Devs @ twitter
• HACS @ twitter
• Use this GitHub action to validate your repository with HACS
• Use hassfest to validate your integration with this GitHub Action