feat: Added workspace recommendations for VSCode/VSCodium

.vscode/extensions.json

@@ -0,0 +1,11 @@
+{
+    "recommendations": [
+        "bbenoist.doxygen",
+        "editorconfig.editorconfig",
+        "elagil.pre-commit-helper",
+        "ms-vscode.cmake-tools",
+        "ms-vscode.cpptools",
+        "vivaxy.vscode-conventional-commits",
+        "xaver.clang-format",
+    ]
+}

.vscode/extensions.json.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2023 Tobias Schmidl
+
+SPDX-License-Identifier: AGPL-3.0-or-later