Merge pull request #894 from kcieplak/topics/vscode-extension-recommended

Add VSCode extension recommendations

Author: kcieplak

.gitignore

@@ -12,7 +12,9 @@
 xcuserdata
 
 # Ignore VSCode user data.
+!.vscode/
 .vscode/*
+!.vscode/extensions.json
 
 # Commonly used name for build products, at the top level.
 /build

.vscode/extensions.json

@@ -0,0 +1,7 @@
+{
+    "recommendations": [
+        "swiftlang.swift-vscode",
+        "editorconfig.editorconfig",
+        "llvm-vs-code-extensions.lldb-dap"
+    ]
+}