add SVG graphs to Doxygen docs

Dockerfile

@@ -21,6 +21,7 @@ RUN dnf -y install \
 	redhat-rpm-config \
 	make cmake \
 	doxygen \
+	graphviz \
 	python3-pip
 
 # Dependencies

Documentation/Doxyfile.in

@@ -906,7 +906,7 @@ EXCLUDE_SYMBOLS        =
 # that contain example code fragments that are included (see the \include
 # command).
 
-EXAMPLE_PATH           =
+EXAMPLE_PATH           = Examples/Cxx/
 
 # If the value of the EXAMPLE_PATH tag contains directories, you can use the
 # EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
@@ -920,7 +920,7 @@ EXAMPLE_PATTERNS       = *
 # irrespective of the value of the RECURSIVE tag.
 # The default value is: NO.
 
-EXAMPLE_RECURSIVE      = NO
+EXAMPLE_RECURSIVE      = ZES
 
 # The IMAGE_PATH tag can be used to specify one or more files or directories
 # that contain images that are to be included in the documentation (see the
@@ -995,7 +995,7 @@ USE_MDFILE_AS_MAINPAGE = @CMAKE_CURRENT_SOURCE_DIR@/main-doc-cpp.md
 # also VERBATIM_HEADERS is set to NO.
 # The default value is: NO.
 
-SOURCE_BROWSER         = NO
+SOURCE_BROWSER         = YES
 
 # Setting the INLINE_SOURCES tag to YES will include the body of functions,
 # classes and enums directly into the documentation.
@@ -1674,7 +1674,7 @@ GENERATE_LATEX         = NO
 # The default directory is: latex.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
-LATEX_OUTPUT           = 
+LATEX_OUTPUT           =
 
 # The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
 # invoked.
@@ -2214,7 +2214,7 @@ HIDE_UNDOC_RELATIONS   = YES
 # set to NO
 # The default value is: NO.
 
-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
@@ -2301,7 +2301,7 @@ UML_LIMIT_NUM_FIELDS   = 10
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-TEMPLATE_RELATIONS     = NO
+TEMPLATE_RELATIONS     = YES
 
 # If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
 # YES then doxygen will generate a graph for each documented file showing the
@@ -2374,7 +2374,7 @@ DIRECTORY_GRAPH        = YES
 # The default value is: png.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOT_IMAGE_FORMAT       = png
+DOT_IMAGE_FORMAT       = svg
 
 # If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
 # enable generation of interactive SVG images that allow zooming and panning.
@@ -2386,7 +2386,7 @@ DOT_IMAGE_FORMAT       = png
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-INTERACTIVE_SVG        = NO
+INTERACTIVE_SVG        = YES
 
 # The DOT_PATH tag can be used to specify the path where the dot tool can be
 # found. If left blank, it is assumed the dot tool can be found in the path.
@@ -2460,7 +2460,7 @@ MAX_DOT_GRAPH_DEPTH    = 0
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOT_TRANSPARENT        = NO
+DOT_TRANSPARENT        = YES
 
 # Set the DOT_MULTI_TARGETS tag to YES to allow dot to generate multiple output
 # files in one run (i.e. multiple -o and -T options on the command line). This