Use repository root as CMake source directory (#153)

* feat(project): add root cmakelists for ide auto-detect

* cmake: use repository root as source directory

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Co-authored-by: nmzik <Nmzik@mail.ru>

.vscode/settings.json

@@ -1,5 +1,5 @@
 {
-    "cmake.sourceDirectory": "${workspaceFolder}/src",
+    "cmake.sourceDirectory": "${workspaceFolder}",
     "cmake.buildDirectory": "${workspaceFolder}/_Build/vscode-clang",
     "cmake.generator": "Ninja",
     "cmake.environment": {