This function imports the shared function xml libraries.
This function imports the Python libraries and objects,
both starndard and local shared ones.
This function initialises a set of global variables.
{ 'hostname' : STAF_REMOTE_HOSTNAME }
This function loads the environment (libraries, functions, variables)
needed by the tests.
'Load environment for test suite execution.'
{ 'returncode' : RC ,
'result' : STAXResult }