Initial software updates settings state and saga

[nelsonkopliku]

Description

Adding initial state/selector/saga for software updates settings.
It should be enough to build initial loading of the settings.

  const {
    settings,
    error,
    loading,
  } = useSelector(getSoftwareUpdatesSettings());

Note: at the moment no distinction is made on errors.
We might want to iterate over the case we get something different from 404, which has the specific meaning of no settings are available, yet

How was this tested?

Automated tests

[dottorblaster]

LGTM with some minor comments, but we can merge 👍