CB-12546: move check_reqs to templates directory and update module references.

node_modules/pseudomap/map.js

@@ -0,0 +1,9 @@
+if (process.env.npm_package_name === 'pseudomap' &&
+    process.env.npm_lifecycle_script === 'test')
+  process.env.TEST_PSEUDOMAP = 'true'
+
+if (typeof Map === 'function' && !process.env.TEST_PSEUDOMAP) {
+  module.exports = Map
+} else {
+  module.exports = require('./pseudomap')
+}