Add visibility parameters to control scope of generated extension

Sources/ResgenSwift/Generate/Runnable/AnalyticsConfiguration+Runnable.swift

@@ -10,6 +10,11 @@ import Foundation
 extension AnalyticsConfiguration: Runnable {
 
     func run(projectDirectory: String, force: Bool) {
+        let args = getArguments(projectDirectory: projectDirectory, force: force)
+        Analytics.main(args)
+    }
+
+    func getArguments(projectDirectory: String, force: Bool) -> [String] {
         var args = [String]()
 
         if force {
@@ -20,25 +25,23 @@ extension AnalyticsConfiguration: Runnable {
             inputFile.prependIfRelativePath(projectDirectory),
             "--target",
             target,
-            "--extension-output-path",
-            extensionOutputPath.prependIfRelativePath(projectDirectory),
-            "--static-members",
-            "\(staticMembersOptions)"
+            "--output-file",
+            outputFile.prependIfRelativePath(projectDirectory)
         ]
 
-        if let extensionName {
-            args += [
-                "--extension-name",
-                extensionName
-            ]
-        }
-        if let extensionSuffix {
-            args += [
-                "--extension-suffix",
-                extensionSuffix
-            ]
+        // Add optional parameters
+        [
+            ("--visibility", visibility),
+            ("--static-members", staticMembers?.description)
+        ].forEach { argumentName, argumentValue in
+            if let argumentValue {
+                args += [
+                    argumentName,
+                    argumentValue
+                ]
+            }
         }
 
-        Analytics.main(args)
+        return args
     }
 }