Add Package.resolved to git, to ensure we get consistent builds.

Author: lucteo

.gitignore

@@ -1,5 +1,4 @@
 .build/
 .swiftpm/
 swift-format.xcodeproj/
-Package.resolved
 

Package.resolved

@@ -0,0 +1,41 @@
+{
+  "pins" : [
+    {
+      "identity" : "swift-argument-parser",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-argument-parser.git",
+      "state" : {
+        "revision" : "9f39744e025c7d377987f30b03770805dcb0bcd1",
+        "version" : "1.1.4"
+      }
+    },
+    {
+      "identity" : "swift-syntax",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-syntax.git",
+      "state" : {
+        "branch" : "main",
+        "revision" : "e1fb17ffaaf95b8228e7e11a37e58014730cc92a"
+      }
+    },
+    {
+      "identity" : "swift-system",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-system.git",
+      "state" : {
+        "revision" : "836bc4557b74fe6d2660218d56e3ce96aff76574",
+        "version" : "1.1.1"
+      }
+    },
+    {
+      "identity" : "swift-tools-support-core",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-tools-support-core.git",
+      "state" : {
+        "revision" : "284a41800b7c5565512ec6ae21ee818aac1f84ac",
+        "version" : "0.4.0"
+      }
+    }
+  ],
+  "version" : 2
+}