GPR authentication support

node_modules/nimnjs/CONTRIBUTING.md

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+## Thanks
+I would like to thank you for your valuable time and effort and applogies if this PR is rejected due to any reason.
+
+Aim: Implementing Nimn specification so that Js object can be converted to nimn format.
+
+### DoD
+Here is the check list to publish any change
+
+* Changes are not half implemented due to the library limitation or any other reason.
+* Changes are well discussed by raising github issue. So they are well known by other contributers and users
+* Echoing the above point. The purpose / goal for the PR should be mentioned in the description.
+* Multiple unrelated changes should not be clubbed in single PR.
+* If you are adding any dependency (specially if it is not the dev dependency) please check that 
+  * it is not dependent on other language packages like c/c++
+  * the package is not very old or very new, discontinued, has any vulnerability etc.
+  * please check the performance and size of package
+  * please check alternate available options
+* Please write tests for the new changes
+* Don't forget to write tests for negative cases
+* Don't comment existing test case.
+
+Note that publishing changes or accepting any PR may take time. So please keep patience.
+
+### Guidelines for first time contributors
+
+* https://github.com/Roshanjossey/first-contributions