Added JavaDoc for Parser.Builder

Author: dabico

src/main/java/ch/usi/si/seart/treesitter/Parser.java

@@ -87,6 +87,14 @@ public Builder toBuilder() {
         return builder().language(getLanguage()).timeout(getTimeout());
     }
 
+    /**
+     * Facilitates the construction of Parser instances.
+     * It allows for the step-by-step creation of these objects
+     * by providing methods for setting individual attributes.
+     * Input validations are performed at each build step.
+     *
+     * @since 1.7.0
+     */
     @FieldDefaults(level = AccessLevel.PRIVATE)
     @NoArgsConstructor(access = AccessLevel.PRIVATE)
     public static class Builder {