0026245: Unable to write SAT file by default

0026245: Unable to write SAT file by default

XSAlgo_AlgoContainer is corrected to return original shape if Shape Processing fails.
Handling of situation of absence of defined operator sequence is corrected to apply DirectFaces operator by default on writing, regardless of target format.
ShapeProcess is corrected to output warning if operator sequence is not defined in resource file, and to continue if one operator in sequence has failed.
Message names are made more meaningful.