Extracting metadata of packages and modules installed by gem and npm language package managers

[abhaykatheria]

Problem Statement
Currently, Tern does not lists the metadata of packages and modules installed by language-level package managers like pip(#149), npm, yarn, gem, and golang.

Describe the Proposal
After this Tern should be able to list all the packages and modules installed via the above-mentioned package managers with their proper metadata.

Steps to Implement Proposal
Tern already supports adding snippets to the command library. For each language level package management system we would need to add the required scripts in snippets.yml.
as mentioned here

[ForgetMe17]

Hi @abhaykatheria, are you currently working on this proposal?

[abhaykatheria]

@ForgetMe17 yes.

[rnjudge]

Since we have gem, npm and pip package managers available, I am going to open an issue specifically for collecting golang packages.