ENH: checkMesh - added -writeChecks option

Added -writeChecks <format> option

- writes computed mesh metrics to file in using <format>
- currently supported formats are OpenFOAM dictionary and JSON

applications/utilities/mesh/manipulation/checkMesh/writeMeshChecks.H

@@ -0,0 +1,64 @@
+enum class writeChecksFormatType
+{
+    none,
+    dictionary,
+    JSON
+};
+const Enum<writeChecksFormatType> writeChecksFormatTypeNames
+{
+    { writeChecksFormatType::none, "none" },
+    { writeChecksFormatType::dictionary, "dictionary" },
+    { writeChecksFormatType::JSON, "JSON" },
+};
+
+writeChecksFormatType writeChecksFormat(writeChecksFormatType::none);
+
+auto writeMeshChecks = [](const fvMesh& mesh, const writeChecksFormatType fmt)
+{
+    if (Pstream::master())
+    {
+        switch (fmt)
+        {
+            case writeChecksFormatType::dictionary:
+            {
+                OFstream os(mesh.time().globalPath()/"checkMesh.dict");
+
+                IOdictionary data
+                (
+                    IOobject
+                    (
+                        mesh.time().globalPath()/"checkMesh.dict",
+                        mesh,
+                        IOobject::NO_READ
+                    )
+                );
+
+                data.writeHeader(os);
+
+                mesh.data().meshDict().write(os, false);
+
+                IOobject::writeEndDivider(os);
+
+                Info<< "Writing mesh data to " << data.objectPath()
+                    << nl << endl;
+
+                break;
+            }
+            case writeChecksFormatType::JSON:
+            {
+                OFstream os(mesh.time().globalPath()/"checkMesh.json");
+
+                Info<< "Writing mesh data to " << os.name() << nl << endl;
+
+                JSONformatter json(os);
+
+                json.writeDict(mesh.data().meshDict());
+                break;
+            }
+            default:
+            {
+                // Do nothing
+            }
+        }
+    }
+};