Add an nxqlEscape automation function

In the platform's Web UI:

• I create a File manually with the title test"something
• After creation, I export the document as XML and see that the path contains the quote

This is troublesome for NXQL queries, for instance in Studio, using the SELECT * FROM Document WHERE ecm:path STARTSWITH '@{Document.path}' query in the Fetch > Query operation
=> if the path is not escaped, this can lead to errors
=> if the path is escaped, the query does not provide any result

With the new Fn.nxqlEscape, the solution, is to use SELECT * FROM Document WHERE ecm:path STARTSWITH '@{Fn.nxqlEscape(Document.path)}'

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Fn.nxqlEscape can now be used in Automation MVEL expressions. Ex:
SELECT * FROM Document WHERE ecm:path STARTSWITH '@{Fn.nxqlEscape(Document.path)}'