Permanent and temporary locations. Changes to holdings and item records

Purpose: There seems to be general consensus from the RA, MM and RM SIGs that we need to have the following:

• Permanent and temporary locations can be assigned at the holding level
• Locations from the holdings record are automatically inherited by any items associated with the holding
• BUT both permanent and temporary location can be overridden at the item level, if needed
• When item-level overrides are removed, the inheritance from the holding resumes
• When holding-level locations change, nothing happens to item-level overrides that may already be in place (post-v1 we might do something more robust as described in UXPROD-533)

We need to implement following changes to inventory metadata display:

1. Add temporary location to holdings records
2. Add permanent location to item records
   CB: Mockups coming soon as part of UX-183

The Effective Location Logic is described here: https://wiki.folio.org/display/RA/Effective+Location+Logic (5/28/2018)
The refined UX design is described here: Location data design pattern(Kimie.O_Kimie.K_Filip_Cate).pdf (6/12/2018)

See more documentation: https://docs.google.com/presentation/d/1aNR4T6822cSuQf5bYW62LfGUQ6GGY9ve9rvJDm36Kck/edit#slide=id.g31f30a6851_0_22