Use WireGuardKit fork with platform fixes

- iPhone Simulator
- Catalyst

Package.resolved

@@ -21,11 +21,11 @@
       },
       {
         "package": "WireGuardKit",
-        "repositoryURL": "https://git.zx2c4.com/wireguard-apple",
+        "repositoryURL": "https://github.com/passepartoutvpn/wireguard-apple",
         "state": {
           "branch": null,
-          "revision": "10da5cfdef362889b438cfbeff867a74e6d717fd",
-          "version": "1.0.15-26"
+          "revision": "b4f74b7bcba9004a1852e615298f9cbc68fb7f67",
+          "version": "1.0.16"
         }
       }
     ]

Package.swift

@@ -40,7 +40,8 @@ let package = Package(
         // .package(url: /* package url */, from: "1.0.0"),
         .package(url: "https://github.com/SwiftyBeaver/SwiftyBeaver", from: "1.9.0"),
         .package(url: "https://github.com/passepartoutvpn/openssl-apple", from: "1.1.11300"),
-        .package(name: "WireGuardKit", url: "https://git.zx2c4.com/wireguard-apple", .exact("1.0.15-26"))
+//        .package(name: "WireGuardKit", url: "https://git.zx2c4.com/wireguard-apple", .exact("1.0.15-26"))
+        .package(name: "WireGuardKit", url: "https://github.com/passepartoutvpn/wireguard-apple", from: "1.0.16")
     ],
     targets: [
         // Targets are the basic building blocks of a package. A target can define a module or a test suite.