Move name from interface to tunnel

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

WireGuard/WireGuard/ZipArchive/ZipExporter.swift

@@ -23,7 +23,7 @@ class ZipExporter {
             var lastTunnelName: String = ""
             for tunnelConfiguration in tunnelConfigurations {
                 if let contents = tunnelConfiguration.asWgQuickConfig().data(using: .utf8) {
-                    let name = tunnelConfiguration.interface.name ?? ""
+                    let name = tunnelConfiguration.name ?? "untitled"
                     if name.isEmpty || name == lastTunnelName { continue }
                     inputsToArchiver.append((fileName: "\(name).conf", contents: contents))
                     lastTunnelName = name

WireGuard/WireGuard/ZipArchive/ZipImporter.swift

@@ -44,7 +44,7 @@ class ZipImporter {
                     continue
                 }
                 guard let fileContents = String(data: file.contents, encoding: .utf8) else { continue }
-                guard let tunnelConfig = try? TunnelConfiguration(fileContents, name: file.fileBaseName) else { continue }
+                guard let tunnelConfig = try? TunnelConfiguration(fromWgQuickConfig: fileContents, called: file.fileBaseName) else { continue }
                 configs[index] = tunnelConfig
             }
             DispatchQueue.main.async { completion(.success(configs)) }