Ability to define global settings

[martianatwork]

It will be helpful if we can manage and define global settings and if the setting for the user is not found we fallback to global settings.

[rez1dent3]

Thanks for the idea. I'll think about it.

[martianatwork]

Hey, @rez1dent3 sorry i didnt had time to create fork and PR.
Here's a gist
https://gist.github.com/martianatwork/0d872705a4450fadff1f45170d3f396c

Also there's an issues with casting for value field in L8.

[rez1dent3]

@martianatwork Very busy this month. When there is free time, I will return to the package.