Add SwiftLint HARD rules

Sources/ResgenSwift/Strings/Twine/TwineError.swift

@@ -8,18 +8,19 @@
 import Foundation
 
 enum TwineError: Error {
+
     case fileNotExists(String)
     case langsListEmpty
     case defaultLangsNotInLangs
-    
+
     var description: String {
         switch self {
         case .fileNotExists(let filename):
             return "error: [\(Twine.toolName)] File \(filename) does not exists "
-            
+
         case .langsListEmpty:
             return "error: [\(Twine.toolName)] Langs list is empty"
-            
+
         case .defaultLangsNotInLangs:
             return "error: [\(Twine.toolName)] Langs list does not contains the default lang"
         }