[Issue#14] component template generator Closes #14

[madhuni]

In this PR

I have added the basic setup to automatically generate the files for the new components. Below are the key takeaways:

• I have added the plop package for generating the templates for our components.
• I have added the scripts to generate the components using plop.
• Each component created by the script will have .jsx, .scss and .test.jsx files that will have the minimalistic required structure.
• I have updated the CONTRIBUTING.md file with the instructions on how to generate the components automatically.

[NehemiahK]

This is really cool, thanks