TEIIDDES-1571: Create ProcedureService implementation

* Add a ProcedureService to the runtime client and add the SQL Statement
  for the teiid metadata file info
TEIIDDES-1571: Add TeiidXmlFileinfo support to ProcedureService

* Add the SQL statement to the ProcedureService, generated for XML file
  models.
TEIIDDES-1571: Add wsdl SQL statement methods to the ProcedureService

* Due to the loquacity of the SQL generation, the statement generation has
  been broken out into helper classes.