Add is_{STATUS} methods in Boattribute

[da-ekchajzer]

Problem

I see a lot of if foo.status == Status.NONE: in the code.

   tmp = sub[sub['manufacturer'] == self.cpu_manufacturer]
            if len(tmp) > 0:
                sub = tmp.copy()
        if self.workloads.status != Status.NONE:

Solution

I think we should consider refactoring these with functions like foo.is_set(), foo.is_default(), etc. It will make the code easier to read.

From @samuelrince https://github.com/Boavizta/boaviztapi/pull/110#discussion_r950697116