Add VS Code bot rules (#769)

.github/locker.yml

@@ -0,0 +1,5 @@
+{
+    daysAfterClose: 45,
+    daysSinceLastUpdate: 7,
+    perform: true
+}

.github/needs_more_info.yml

@@ -0,0 +1,6 @@
+{
+    daysUntilClose: 21,
+    needsMoreInfoLabel: 'needs more info',
+    perform: true,
+    closeComment: "This issue has been closed automatically because it needs more information and has not had recent activity. See also our [issue reporting](https://aka.ms/azcodeissuereporting) guidelines.\n\nHappy Coding!"
+}