Go to definition: Function parameters

[julienduchesne]

This adds support to go to definition for any parameter used within a function
Closes #14

[zzehring]

Nice feature! I do wonder if it would be worth having something like a findParamById function. If that's too much of a rearchitect (since it looks like we're relying on on the findBind func for both binds and params), I'll approve this PR.

[julienduchesne]

Nice feature! I do wonder if it would be worth having something like a findParamById function. If that's too much of a rearchitect (since it looks like we're relying on on the findBind func for both binds and params), I'll approve this PR.

I do agree that a refactor would be nice. I'd like to start by moving stuff out of the server package though