chore: add node_modules dependencies

- Add all npm dependencies for the project

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node_modules/deep-is/example/cmp.js

@@ -0,0 +1,11 @@
+var equal = require('../');
+console.dir([
+    equal(
+        { a : [ 2, 3 ], b : [ 4 ] },
+        { a : [ 2, 3 ], b : [ 4 ] }
+    ),
+    equal(
+        { x : 5, y : [6] },
+        { x : 5, y : 6 }
+    )
+]);