JS: Add meta query for measuring library inputs

javascript/ql/src/meta/alerts/LibraryInputs.ql

@@ -0,0 +1,14 @@
+/**
+ * @name Library inputs
+ * @description An input coming from the client of a library
+ * @kind problem
+ * @problem.severity recommendation
+ * @id js/meta/alerts/library-inputs
+ * @tags meta
+ * @precision very-low
+ */
+
+import javascript
+import semmle.javascript.PackageExports
+
+select getALibraryInputParameter(), "Library input"