Add truffle-config.js to truffle tab

[emilyJLin95]

In the truffle tab on VS Code, it'd be nice to have a section where I can edit my truffle-config, instead of having to toggle back to the explorer view

[kevinbluer]

Neat idea! From a UX perspective, we could display the config's properties in the same way it's done under the deployments view (see below). Also clicking a given entry could both jump you to the config file itself and the specific line for speedier editing (although this is definitely a nice-to-have).

[xhulz]

Hey @michaeljohnbennett, I see you're working on a solution that seems to solve this problem, right? Maybe it's better to wait for your solution or can I work on it?

Thank you