chore: add EasyCore dependency

Package.swift

@@ -7,8 +7,14 @@ let package = Package(
     products: [
         .library(name: "EasyDate", targets: ["EasyDate"]),
     ],
+    dependencies: [
+        .package(
+            url: "https://github.com/EasyPackages/EasyCore.git",
+            .upToNextMajor(from: "0.0.1")
+        )
+    ],
     targets: [
-        .target(name: "EasyDate"),
+        .target(name: "EasyDate", dependencies: ["EasyCore"]),
         .testTarget(
             name: "EasyDateTests",
             dependencies: ["EasyDate"]

Sources/EasyDate/DateFormatterExtensions.swift

@@ -4,6 +4,7 @@
 //
 
 import Foundation
+import EasyCore
 
 ///
 /// A collection of reusable and localized `DateFormatter` configurations.
@@ -30,7 +31,7 @@ public extension DateFormatter {
         let f = DateFormatter()
         f.calendar = Calendar(identifier: .iso8601)
         f.timeZone = .gmt
-        f.locale = Locale(identifier: "en_US_POSIX")
+        f.locale = Locale.enUSPOSIX
         f.dateFormat = "yyyy-MM-dd'T'HH:mm:ssXXXXX"
         return f
     }
@@ -46,7 +47,7 @@ public extension DateFormatter {
     ///
     static var timestamp: DateFormatter {
         let f = DateFormatter()
-        f.locale = Locale(identifier: "en_US_POSIX")
+        f.locale = Locale.enUSPOSIX
         f.dateFormat = "yyyy-MM-dd HH:mm:ss"
         return f
     }

Sources/EasyDate/StringExtensions.swift

@@ -106,7 +106,7 @@ public extension String {
         ]
 
         let formatter = DateFormatter()
-        formatter.locale = Locale(identifier: "en_US_POSIX")
+        formatter.locale = Locale.enUSPOSIX
         formatter.timeZone = .gmt
 
         for format in formats {

Tests/EasyDateTests/DateFormatterExtensionsTests.swift

@@ -1,5 +1,6 @@
 import Testing
 import Foundation
+import EasyCore
 
 @testable import EasyDate