WireGuardKit: Change getWireGuardVersion() -> wireGuardVersion

Signed-off-by: Andrej Mihajlov <and@mullvad.net>

WireGuardKit/Sources/WireGuardKit/WireGuardAdapter.swift

@@ -55,7 +55,7 @@ public class WireGuardAdapter {
         return self.packetTunnelProvider?.packetFlow.value(forKeyPath: "socket.fileDescriptor") as? Int32
     }
 
-    /// Returns a Wireguard version.
+    /// Returns a WireGuard version.
     class var version: String {
         return String(cString: wgVersion())
     }

WireGuardKit/Sources/WireGuardKit/WireGuardKit.swift

@@ -3,6 +3,6 @@
 
 import Foundation
 
-public func getWireGuardVersion() -> String {
+public var wireGuardVersion: String {
     return WireGuardAdapter.version
 }