#1917 Changed hydrogens layout in WASM

Fix lyaout constructor. Add UT.

api/wasm/indigo-ketcher/test/failed_unfold.ket

@@ -0,0 +1,69 @@
+{
+    "root": {
+        "nodes": [
+            {
+                "$ref": "mol0"
+            }
+        ],
+        "connections": [],
+        "templates": []
+    },
+    "mol0": {
+        "type": "molecule",
+        "atoms": [
+            {
+                "label": "C",
+                "location": [
+                    15.249374214363929,
+                    -11.282470415521408,
+                    0
+                ],
+                "explicitValence": 8
+            },
+            {
+                "label": "C",
+                "location": [
+                    16.25062578563607,
+                    -11.282470415521408,
+                    0
+                ],
+                "explicitValence": 8
+            },
+            {
+                "label": "C",
+                "location": [
+                    15.750050188048686,
+                    -10.417529584478597,
+                    0
+                ],
+                "explicitValence": 8
+            }
+        ],
+        "bonds": [
+            {
+                "type": 4,
+                "atoms": [
+                    0,
+                    1
+                ],
+                "topology": 1
+            },
+            {
+                "type": 4,
+                "atoms": [
+                    1,
+                    2
+                ],
+                "topology": 1
+            },
+            {
+                "type": 4,
+                "atoms": [
+                    2,
+                    0
+                ],
+                "topology": 1
+            }
+        ]
+    }
+}

api/wasm/indigo-ketcher/test/failed_unfold_ref.ket

@@ -0,0 +1 @@
+{"root":{"nodes":[{"$ref":"mol0"}]},"mol0":{"type":"molecule","atoms":[{"label":"C","location":[15.249374389648438,-11.282470703125,0.0],"explicitValence":8},{"label":"C","location":[16.250625610351564,-11.282470703125,0.0],"explicitValence":8},{"label":"C","location":[15.75005054473877,-10.417530059814454,0.0],"explicitValence":8},{"label":"H","location":[15.60797119140625,-12.048626899719239,0.0]},{"label":"H","location":[14.30993938446045,-10.939743995666504,0.0]},{"label":"H","location":[14.38306713104248,-11.781982421875,0.0]},{"label":"H","location":[14.76511001586914,-10.590422630310059,0.0]},{"label":"H","location":[15.075355529785157,-12.267212867736817,0.0]},{"label":"H","location":[16.734975814819337,-10.590508460998536,0.0]},{"label":"H","location":[17.190080642700197,-10.939798355102539,0.0]},{"label":"H","location":[16.42461585998535,-12.267218589782715,0.0]},{"label":"H","location":[15.892024040222168,-12.048624992370606,0.0]},{"label":"H","location":[17.116910934448243,-11.78201961517334,0.0]},{"label":"H","location":[14.908734321594239,-10.342500686645508,0.0]},{"label":"H","location":[16.59134864807129,-10.342525482177735,0.0]},{"label":"H","location":[16.51589012145996,-9.77449893951416,0.0]},{"label":"H","location":[15.750094413757325,-9.417530059814454,0.0]},{"label":"H","location":[14.98426628112793,-9.774432182312012,0.0]}],"bonds":[{"type":4,"topology":1,"atoms":[0,1]},{"type":4,"topology":1,"atoms":[1,2]},{"type":4,"topology":1,"atoms":[2,0]},{"type":1,"atoms":[0,3]},{"type":1,"atoms":[0,4]},{"type":1,"atoms":[0,5]},{"type":1,"atoms":[0,6]},{"type":1,"atoms":[0,7]},{"type":1,"atoms":[1,8]},{"type":1,"atoms":[1,9]},{"type":1,"atoms":[1,10]},{"type":1,"atoms":[1,11]},{"type":1,"atoms":[1,12]},{"type":1,"atoms":[2,13]},{"type":1,"atoms":[2,14]},{"type":1,"atoms":[2,15]},{"type":1,"atoms":[2,16]},{"type":1,"atoms":[2,17]}]}}

api/wasm/indigo-ketcher/test/test.js

@@ -968,6 +968,25 @@ M  END
         });
     }
 
+    {
+        test("unfold-ci-error", "basic", () => {
+            var fs = require('fs');
+            let options = new indigo.MapStringString();
+            options.set("output-content-type", "application/json");
+            options.set("input-format", "chemical/x-indigo-ket");
+            const ket = fs.readFileSync("failed_unfold.ket");
+            const ket_unfold = JSON.parse(indigo.convert_explicit_hydrogens(ket, "unfold", "ket", options)).struct;
+
+            // fs.writeFileSync("failed_unfold_ref.ket", ket_unfold);
+
+            const ket_unfold_ref = fs.readFileSync("failed_unfold_ref.ket").toString();
+
+            assert.equal(ket_unfold, ket_unfold_ref);
+
+            options.delete();
+        });
+    }
+
     // Run tests
     run();
 });

core/indigo-core/layout/src/molecule_layout_graph.cpp

@@ -26,16 +26,10 @@ using namespace indigo;
 
 IMPL_ERROR(MoleculeLayoutGraph, "layout_graph");
 
-MoleculeLayoutGraph::MoleculeLayoutGraph() : Graph()
+MoleculeLayoutGraph::MoleculeLayoutGraph()
+    : Graph(), _flipped(false), max_iterations(-1), layout_orientation(UNCPECIFIED), preserve_existing_layout(false), cancellation(nullptr),
+      _total_morgan_code(0), _first_vertex_idx(-1), _n_fixed(0), _molecule(nullptr), _molecule_edge_mapping(nullptr)
 {
-    _total_morgan_code = 0;
-    _first_vertex_idx = -1;
-    _n_fixed = 0;
-    _molecule = 0;
-    _molecule_edge_mapping = 0;
-    cancellation = 0;
-    _flipped = false;
-    preserve_existing_layout = false;
 }
 
 MoleculeLayoutGraph::~MoleculeLayoutGraph()