Stabilization fixes related to regression testing

* Added fmtlib to LicenseInformation.txt
* Add license info for roffcpp
* Regression Tests: Guard use of invalid bounding box
* Regression Test: Check if file is present before opening

ApplicationLibCode/ModelVisualization/RivWellPathPartMgr.cpp

@@ -889,6 +889,7 @@ void RivWellPathPartMgr::appendFlattenedStaticGeometryPartsToModel( cvf::ModelBa
                                                                     double                  characteristicCellSize,
                                                                     const cvf::BoundingBox& wellPathClipBoundingBox )
 {
+    if ( !wellPathClipBoundingBox.isValid() ) return;
     if ( !isWellPathWithinBoundingBox( wellPathClipBoundingBox ) ) return;
 
     // The pipe geometry needs to be rebuilt on scale change to keep the pipes round