fix for modules not working in edge

[muthurathinam]

Summary

Modifies the output format for es output to es6 version in order fix module loading issue in edge

Test plan

• npm install
• npm run build to build the code the es6 modeule format output of the compilation will reside under lib/es folder

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.