Infrahub Location Schema Update

Current: Continent -> Country -> Site -> Rack

Desired: Contient -> Country -> Metro -> Site -> Rack
                             ^^^^^^^^^^
-----------------
Original schema
------------------

- name: Continent
  <snip>
  children: "LocationCountry"
  parent: ""
- name: Country
  <snip>
  children: "LocationSite"
  parent: "LocationContinent"
- name: Site
  <snip>
  children: "LocationRack"
  parent: "LocationMetro"
- name: Rack
  <snip>
  children: ""
  parent: "LocationSite"

----------------
Desired Schema
----------------

- name: Continent
  <snip>
  children: "LocationCountry"
  parent: ""
- name: Country
  <snip>
  children: "LocationMetro"
  parent: "LocationContinent"
- name: Metro
  <snip>
  children: "LocationSite"
  parent: "LocationCountry"
- name: Site
  <snip>
  children: "LocationRack"
  parent: "LocationMetro"
- name: Rack
  <snip>
  children: ""
  parent: "LocationSite"