Do not create collaboration diagrams in doxygen docs

The diagrams do not really add much value and do not highlight the important concepts
of classes, confusing the user and making things looks more complicated than they are

Author: wonder-sk

cmake_templates/Doxyfile.in

@@ -1511,7 +1511,7 @@ CLASS_GRAPH            = YES
 # indirect implementation dependencies (inheritance, containment, and
 # class references variables) of the class with other documented classes.
 
-COLLABORATION_GRAPH    = YES
+COLLABORATION_GRAPH    = NO
 
 # If the GROUP_GRAPHS and HAVE_DOT tags are set to YES then doxygen
 # will generate a graph for groups, showing the direct groups dependencies