Added GuiRegister to allow users to create a new account on ReplayMod.com from the Mod itself

src/main/java/eu/crushedpixel/replaymod/utils/EmailAddressUtils.java

@@ -0,0 +1,17 @@
+package eu.crushedpixel.replaymod.utils;
+
+import java.net.URLEncoder;
+
+public class EmailAddressUtils {
+    public static boolean isValidEmailAddress(String mail) {
+        try {
+            String[] spl1 = mail.split("@");
+            String[] spl2 = spl1[1].split("\\.");
+            String suffix = spl2[1];
+
+            return spl1[0].equals(URLEncoder.encode(spl1[0], "UTF-8")) && spl1[1].equals(URLEncoder.encode(spl1[1], "UTF-8"));
+        } catch(Exception e) {
+            return false;
+        }
+    }
+}