Add the API to POST the updateScript into RestAPI

[patrickclercicube]

When the outcome is very big the URL requested for the Script execution could be higher than the browser can accept. In this case you will receive a "400 bad request" from the browser with the script not even called.
To avoid that we can add a POST request for the script execution in the restapi.

[patrickclercicube]

I will add a @post version of getScriptResultPost() and add the @consumes( {MediaType.TEXT_PLAIN, MediaType.TEXT_XML, MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON } ) annotation as well.