npm scripts to pack an extension

[ghost]

I wanted to automate build process even more so that it generates a zip file which contains files under build directory after build success:

• Added pack.js to generate a zip file
  where a name of a generated zip file would be <project directory name>-v<version>.zip
  where <version> is defined in manifest.json
• Modified index.js:
  • To copy pack.js from template to actual project
  • To add npm script pack and repack
  • To add adm-zip as a dev dependency (pack.js uses it)

[dutiyesh]

Hey @internalstability, this is a good feature. Thank you!
I will review the pull request.

[sayeed205]

Any news on this?

[dutiyesh]

Hey @internalstability my apologies, it took some time for me to review the pull request but let me know if you need any more clarity in above review comments.

[somidad]

Okay, will let you know when its done
(Sorry for confusion, I switched my account)

[somidad]

Please review execpt try-catch

[dutiyesh]

@gsongsong Thank you for adding this feature 🎉.