Resolve "Ajout de la passe à rugosité de fond: cas d'un radier incliné"

Closes #658 (closed), #664 (closed)

src/app/calculators/rugofondmultiple/config.json

+[
+    {
+        "id": "fs_hydraulique",
+        "type": "fieldset",
+        "fields": [
+            "Q",
+            "Z1"
+        ]
+    },
+    {
+        "id": "fs_geometry_crete",
+        "type": "fieldset",
+        "fields": [
+            "L",
+            "Cd"
+        ]
+    },
+    {
+        "id": "fs_geometry_rampe",
+        "type": "fieldset",
+        "fields": [
+            {
+                "id": "If",
+                "help": "hsl/pente.html"
+            },
+            "d65",
+            "a"
+        ]
+    },
+    {
+        "id": "fs_type",
+        "type": "fieldset",
+        "fields": [
+            {
+                "id": "select_passtype",
+                "type": "select",
+                "property": "rugofondType"
+            },
+            "ZF1",
+            {
+                "id": "ZRR",
+                "allowEmpty": true
+            },
+            {
+                "id": "ZRL",
+                "allowEmpty": true
+            },
+            {
+                "id": "NbT",
+                "allowEmpty": true
+            }
+        ]
+    }
+]