fix(doc) update module names in API diagram

Author: ankostis

docs/source/GraphtikModuleDependencies.dot

@@ -38,12 +38,12 @@ digraph {
                 tooltip="(public)"
                 fillcolor=wheat
                  URL="../reference.html#module-graphtik.pipeline"];
-    "op.py"    [shape=component
+    "fnop.py"    [shape=component
                 tooltip="(public)"
                 fillcolor=wheat
-                 URL="../reference.html#module-graphtik.op"];
+                 URL="../reference.html#module-graphtik.fnop"];
 
-    subgraph cluster_network {
+    subgraph cluster_planning {
         label="core modules";
         tooltip="related to graph solution";
         URL="arch.html#term-execution";
@@ -52,23 +52,23 @@ digraph {
                     tooltip="(private)"
                     fillcolor=AliceBlue
                     URL="../reference.html#module-graphtik.execution"];
-        "network.py"     [shape=component
+        "planning.py"     [shape=component
                     tooltip="(private)"
                     fillcolor=AliceBlue
-                    URL="../reference.html#module-graphtik.network"];
+                    URL="../reference.html#module-graphtik.planning"];
     }
 
-    {"op.py", "network.py"} -> "base.py" [tooltip="(import-time)"
+    {"fnop.py", "planning.py"} -> "base.py" [tooltip="(import-time)"
                                         headport=n tailport=s];
     "execution.py" -> "base.py" [tooltip="(import-time)"
                                         headport=n tailport=se];
     {"pipeline.py",  "plot.py"} -> "base.py" [tooltip="(import-time)"
                                         headport=n tailport=sw];
     "base.py" -> "plot.py"                      [tooltip="(run-time)" style=dashed  headport=s];
-    "execution.py" -> "network.py"    [tooltip="(import-time)"];
-    "network.py" -> "execution.py"    [tooltip="(run-time)"  style=dashed];
-    "pipeline.py" -> "network.py"     [tooltip="(run-time)" style=dashed];
-    "op.py" -> "pipeline.py"    [style=dashed
+    "execution.py" -> "planning.py"    [tooltip="(import-time)"];
+    "planning.py" -> "execution.py"    [tooltip="(run-time)"  style=dashed];
+    "pipeline.py" -> "planning.py"     [tooltip="(run-time)" style=dashed];
+    "fnop.py" -> "pipeline.py"    [style=dashed
                                  tooltip="(run-time) just for plotting"];
     "sphinxext/" -> "plot.py"                   [tooltip="(import-time)" headport=n  tailport=s];
 }