Add defmt and log to default vscode settings (#22)

Author: astapleton

.vscode/settings.json

@@ -1,8 +1,10 @@
 {
     "rust-analyzer.cargo.features": [
         "rt",
-        "stm32h503"
+        "stm32h503",
+        "defmt",
+        "log",
     ],
     "rust-analyzer.check.allTargets": false,
     "rust-analyzer.check.targets": "thumbv8m.main-none-eabihf",
-}
+}