Add support for exclusions on broadcasts

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 90.90909% with 1 line in your changes missing coverage. Please review.

Please upload report for BASE (main@d3d8246). Learn more about missing BASE report.

Files	Patch %	Lines
core/models/broadcasts.go	88.88%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #275 +/- ## ======================================= Coverage ? 62.68% ======================================= Files ? 187 Lines ? 10434 Branches ? 0 ======================================= Hits ? 6541 Misses ? 3019 Partials ? 874 ```

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