Adding swiftformat plugin

.gitignore

@@ -27,6 +27,6 @@ playground.xcworkspace
 #
 # Xcode automatically generates this directory with a .xcworkspacedata file and xcuserdata
 # hence it is not needed unless you have added a package configuration file to your project
-# .swiftpm
+.swiftpm
 
 .build/

.swiftformat

@@ -0,0 +1,7 @@
+--disable blankLinesAtStartOfScope,blankLinesAtEndOfScope,unusedArguments,redundantSelf,wrapMultilineStatementBraces,extensionAccessControl,redundantClosure,redundantInternal,preferForLoop,redundantRawValues
+--swiftversion "5.7"
+--commas inline
+--ranges nospace
+--trimwhitespace nonblank-lines
+--decimalgrouping none
+--header "\nCopyright (c) {year} Adyen N.V.\n\nThis file is open source and available under the MIT license. See the LICENSE file for more info.\n"

Package.resolved

@@ -8,6 +8,15 @@
         "revision" : "41982a3656a71c768319979febd796c6fd111d5c",
         "version" : "1.5.0"
       }
+    },
+    {
+      "identity" : "swiftformat",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/nicklockwood/SwiftFormat",
+      "state" : {
+        "revision" : "d6309f7440889427426143b4a0b100b959d3f3e6",
+        "version" : "0.54.3"
+      }
     }
   ],
   "version" : 2

Package.swift

@@ -9,7 +9,8 @@ let package = Package(
         .macOS(.v13)
     ],
     dependencies: [
-        .package(url: "https://github.com/apple/swift-argument-parser", from: "1.5.0")
+        .package(url: "https://github.com/apple/swift-argument-parser", from: "1.5.0"),
+        .package(url: "https://github.com/nicklockwood/SwiftFormat", from: "0.54.0")
     ],
     targets: [
         // Targets are the basic building blocks of a package, defining a module or a test suite.