Update test framework: fix run_tests.py to support all test files, add auto-import-check for test files

node_modules/@protobufjs/inquire/index.js

@@ -0,0 +1,17 @@
+"use strict";
+module.exports = inquire;
+
+/**
+ * Requires a module only if available.
+ * @memberof util
+ * @param {string} moduleName Module to require
+ * @returns {?Object} Required module if available and not empty, otherwise `null`
+ */
+function inquire(moduleName) {
+    try {
+        var mod = eval("quire".replace(/^/,"re"))(moduleName); // eslint-disable-line no-eval
+        if (mod && (mod.length || Object.keys(mod).length))
+            return mod;
+    } catch (e) {} // eslint-disable-line no-empty
+    return null;
+}