doxygen: update config file

-changed config file for graph visualization
-increased fields limit

Change-Id: Ic2270930230e9eaa6272dbfec0ca0a9643bfa6d8

doc/doxygen/core-doc.cfg.in

@@ -2153,7 +2153,7 @@ HIDE_UNDOC_RELATIONS   = YES
 # set to NO
 # The default value is: YES.
 
-HAVE_DOT               = NO
+HAVE_DOT               = YES
 
 # The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
 # to run in parallel. When set to 0 doxygen will base this on the number of
@@ -2219,7 +2219,7 @@ GROUP_GRAPHS           = YES
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-UML_LOOK               = NO
+UML_LOOK               = YES
 
 # If the UML_LOOK tag is enabled, the fields and methods are shown inside the
 # class node. If there are many fields or methods and many nodes the graph may
@@ -2232,7 +2232,7 @@ UML_LOOK               = NO
 # Minimum value: 0, maximum value: 100, default value: 10.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-UML_LIMIT_NUM_FIELDS   = 10
+UML_LIMIT_NUM_FIELDS   = 30
 
 # If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
 # collaboration graphs will show the relations between templates and their
@@ -2270,7 +2270,7 @@ INCLUDED_BY_GRAPH      = YES
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-CALL_GRAPH             = NO
+CALL_GRAPH             = YES
 
 # If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
 # dependency graph for every global function or class method.