[Feature] Add a ReloadableLogger.IsFrozen() method #100
Description
Request
Add a ReloadableLogger.IsFrozen() method, which returns a boolean value based on if ReloadableLogger is frozen or not.
Reasoning
I am trying to both use Serilog with bootstrap logging and run AspNetCore tests in parallel. This caused me more headache than I'd like, and I recently ran into this issue.
While this in and of itself does not solve the issue, it at least moves towards a solution. Right now there is no way to see if ReloadableLogger is frozen without attempting to freeze it and catching the error.
Long term, this would allow for AddSerilog(...) to do something other than just throw.