Add OriginalName annotation

deob-annotations/src/main/java/dev/openrs2/deob/annotations/OriginalName.java

@@ -0,0 +1,9 @@
+package dev.openrs2.deob.annotations;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Target;
+
+@Target({ ElementType.FIELD, ElementType.METHOD, ElementType.TYPE })
+public @interface OriginalName {
+	String value();
+}