Defined the Persistence library in the Libraries package for the Locations target.

Apps/Locations/Libraries/Package.swift

@@ -27,6 +27,10 @@ let package = Package(
                 "APICore"
             ]
         ),
+        .target(
+            name: "Persistence",
+            dependencies: []
+        ),
         .testTarget(
             name: "APICoreTests",
             dependencies: [
@@ -40,5 +44,11 @@ let package = Package(
                 "Locations"
             ]
         ),
+        .testTarget(
+            name: "PersistenceTests",
+            dependencies: [
+                "Persistence"
+            ]
+        ),
     ]
 )