ENH: Flip app images left-right forward-backward

This now has the same orientation as the Interson app output.

Author: thewtex

app/AcquireIntersonArrayBMode.cxx

@@ -182,9 +182,10 @@ int main( int argc, char * argv[] )
   direction.SetIdentity();
   ImageType::DirectionType::InternalMatrixType & vnlDirection = direction.GetVnlMatrix();
   vnlDirection.put(0, 0,  0.0);
-  vnlDirection.put(0, 1, -1.0);
+  vnlDirection.put(0, 1,  1.0);
   vnlDirection.put(1, 0,  1.0);
   vnlDirection.put(1, 1,  0.0);
+  vnlDirection.put(2, 2, -1.0);
   image->SetDirection( direction );
   image->Allocate();
 

app/AcquireIntersonArrayRF.cxx

@@ -162,9 +162,10 @@ int main( int argc, char * argv[] )
   direction.SetIdentity();
   ImageType::DirectionType::InternalMatrixType & vnlDirection = direction.GetVnlMatrix();
   vnlDirection.put(0, 0,  0.0);
-  vnlDirection.put(0, 1, -1.0);
+  vnlDirection.put(0, 1,  1.0);
   vnlDirection.put(1, 0,  1.0);
   vnlDirection.put(1, 1,  0.0);
+  vnlDirection.put(2, 2, -1.0);
   image->SetDirection( direction );
   image->Allocate();