* @param: {string} fieldname
* @param: {string} property name [readOny, reqd, hidden, ...]
* @param: {boolean|string|Array} property value
frm.setProp('lead_name', 'hidden', true)
frm.setProp('lead_name', 'label', "New Label For Lead")
frm.setProp('lead_name', 'reqd', true)
frm.setProp('lead_name', 'readOnly', false)
// options can be used on Select and Link field types
frm.setProp('lead_source', 'options', ["Website","Blog", "Search"])