Use XPath Expression from Validation Service to open an Edit wizard

[dlabordus]

Is your feature request related to a problem? Please describe.
After issue 111 of the Validator Service is implemented the response will return a XPath Expression for some validations. In the Diagnostic Window we want to use this XPath Expression to find the element in the document and start an Edit wizard for that element.

Describe the solution you'd like
Use the XPath Expression from the Response to find the Element with some JavaScript Library and use the standard functions to start the Edit wizard for this element.

Additional information
This means changing the standard diagnostic dialog from OpenSCD to use the XPath Expression to open the Edit wizard!