Send generator-package array as json-array to the build server - (Solves- #397)

[pranav1698]

Checklist

• I have read the Contribution & Best practices Guide and my PR follows them.
• There is a corresponding issue for this pull request.
• My branch is up-to-date with the Upstream master branch.
• The unit tests pass locally with my changes (provide a screenshot or link for test)
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Short description of what this resolves:

This sends the generator-package array from the webapp to the build server sending it as a json array
This array can be further used in the build server for installing packages

Changes proposed in this pull request:

• Dumping the package array into a json array
• Sending the json array to the build server with the trigger request

Fixes #397

[pranav1698]

Hosted site: https://boiling-thicket-10511.herokuapp.com/

[pranav1698]

@tabesin @meets2tarun @xeon-zolt please review

[tabesin]

The terminology packages is equally obscure as features though. It should be made more transparent to a person unfamiliar with the code what is happening there.

ok,go fwd

[pranav1698]

Should we replace it with softwares??

[tabesin]

I called it receipe previously.

[pranav1698]

Ok, going with recipes

[pranav1698]

@tabesin please review now

[xeon-zolt]

LGTM, not thoroughly checked.

[xeon-zolt]

I called it receipe previously.

recipe word looks confusing to me

[tabesin]

ingredients?