Exclude intervals when rendering

[JonathanTroyer]

Rather than just rendering at every interval, it would be useful to render at that interval but excluding some. The specific use case I saw was rendering hourly but excluding nights.

Note that this would probably only be useful when the rendering interval is less than a day.

[JonathanTroyer]

@JonathanTroyer This issue has been migrated to GitLab. Please continue the discussion there: https://gitlab.com/JonathanTroyer/Progress-Renderer/issues/9