RCFilters: Add range group filters - limit, days and hours

RCFilters: Add range group filters - limit, days and hours

- Add 'hidden' groups that have base defaults but are not
  viewed in the filter drop-down.
- Add a UI for days, hours and limit selections, based on their
  group models.
- Clean up the fieldset form to remove redundant line breaks
  and empty objects.
- Add 'hours' as a subset of days, where the UI can split itself
  by picking up values >=1 and <1
- Add the ability to allow 'arbitrary' information from the URL
  values, but also make sure there is a validation method
  and a possibility to re-sort the values that are added in.

Bug: T162784
Bug: T162786
Change-Id: I8068a7cc411eef40ddb8af4eef1d4f1e5f2a2b82