LPS-48609 DDMStructure Readonly attribute

The issue root is that we didn't define readOnly attribute in <input type="text"> and <textarea> label.

Refer to the below link:
input text: http://www.w3schools.com/jsref/dom_obj_text.asp
textarea: http://www.w3schools.com/tags/tag_textarea.asp

We should add the readOnly attribute in the two tags. For other tags, for example, <select> tag, it doesn't have this attribute (http://www.w3schools.com/tags/tag_select.asp).

For the readOnly attribute, we can't directly define it in tag. Because readOnly still be read-only (even though we set readOnly=false, the filed also is read-only) if the field have readOnly attribute.

Please help check it.

Thanks,
Hai