ISPN-3480 Use protoparser lib instead of relying on binary descriptors g...

...enerated by protoc

https://issues.jboss.org/browse/ISPN-3480


Maybe @tristantarrant can comment, but my assumption before was this file was only for strings that are found in the XML schema.  These are all operation values that don't live in the schema.  Or maybe we want to keep them all this file going forward?