[Request] add support for Extended Rest

[Skroxious]

Is your feature request related to a problem? Please describe.
Would it be possible to enable an option of a third type of rest? A full rest or Extended Rest.
And be compatible with
https://github.com/FLPub/symbaroum5ecore

Describe the solution you'd like
An option to enable a third rest type that would function as a rules as written Long Rest to reset everything.
Perhaps with an option to say how long such a rest lasts for, default 24 hours.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.