add basic settings for the project uniformisation and eslint vscode extension

.vscode/extensions.json

@@ -0,0 +1,5 @@
+{
+	"recommendations": [
+		"dbaeumer.vscode-eslint"
+	]
+}

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+    "editor.tabSize": 4,
+    "editor.insertSpaces": false,
+
+    "files.insertFinalNewline": true,
+    "files.trimFinalNewlines": true,
+    "files.trimTrailingWhitespace": true
+}