Update Doxyfile settings for collaboration and call graphs

Doxyfile

@@ -2516,7 +2516,7 @@ CLASS_GRAPH            = YES
 # The default value is: YES.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-COLLABORATION_GRAPH    = NO
+COLLABORATION_GRAPH    = YES
 
 # If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
 # groups, showing the direct groups dependencies. See also the chapter Grouping
@@ -2605,7 +2605,7 @@ INCLUDED_BY_GRAPH      = YES
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-CALL_GRAPH             = YES
+CALL_GRAPH             = NO
 
 # If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
 # dependency graph for every global function or class method.
@@ -2617,7 +2617,7 @@ CALL_GRAPH             = YES
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-CALLER_GRAPH           = YES
+CALLER_GRAPH           = NO
 
 # If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical
 # hierarchy of all classes instead of a textual one.
@@ -2640,7 +2640,7 @@ DIRECTORY_GRAPH        = YES
 # Minimum value: 1, maximum value: 25, default value: 1.
 # This tag requires that the tag DIRECTORY_GRAPH is set to YES.
 
-DIR_GRAPH_MAX_DEPTH    = 1
+DIR_GRAPH_MAX_DEPTH    = 5
 
 # The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
 # generated by dot. For an explanation of the image formats see the section