Defined the "Dependencies" target and test target in the Libraries package.

Libraries/Package.swift

@@ -15,6 +15,7 @@ let package = Package(
         ),
     ],
     dependencies: [
+        .package(path: "../Cores"),
         .package(
             url: "https://github.com/kishikawakatsumi/KeychainAccess.git",
             from: "4.0.0"
@@ -22,6 +23,13 @@ let package = Package(
     ],
     targets: [
         .target(name: "APIService"),
+        .target(
+            name: "Dependencies",
+            dependencies: [
+                "Cores",
+                "APIService"
+            ]
+        ),
         .target(
             name: "KeychainStorage",
             dependencies: [
@@ -32,6 +40,10 @@ let package = Package(
             name: "APIServiceTests",
             dependencies: ["APIService"]
         ),
+        .testTarget(
+            name: "DependenciesTests",
+            dependencies: ["Dependencies"]
+        ),
         .testTarget(
             name: "KeychainStorageTests",
             dependencies: ["KeychainStorage"]