Implement hashCode for version

common/src/main/java/us/myles/ViaVersion/update/Version.java

@@ -2,6 +2,8 @@ package us.myles.ViaVersion.update;
 
 import com.google.common.base.Joiner;
 
+import java.util.Arrays;
+import java.util.Objects;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -85,6 +87,13 @@ public class Version implements Comparable<Version> {
         return that instanceof Version && equals(this, (Version) that);
     }
 
+    @Override
+    public int hashCode() {
+        int result = Objects.hash(tag);
+        result = 31 * result + Arrays.hashCode(parts);
+        return result;
+    }
+
     /**
      * Get the tag, eg. -ALPHA
      *