feat: component context info

[lifeart]

Related issue: #38, #53

Features:

• mu, pods, classic layouts support for app models definitions lookup, including js and ts files.
• mu, pods, classic layouts support for app transforms definitions lookup, including js and ts files.
• addon components and helpers definitions lookup
• AngleBracket components autocomplete (including addon-located components) for mu, pods, classic layouts.
• go-to routes, component properties, actions for mu, pods, classic
• go-to service declaration definition for classic components
• go-to ember/addon import support
• store.peekRecord, findRecord... model names autocomplete for classic
• belongsTo, hasMany model names autocomplete for classic
• transitionTo,.. routes autocomplete for classic
• named: service(name) services autocomplete
• template linting fix
• in-repo addons lookup (for classic and mu apps)

implemented in https://marketplace.visualstudio.com/items?itemName=lifeart.vscode-ember-unstable
active fork: https://github.com/lifeart/ember-language-server

[chriskrycho]

I've made a bunch of small and large changes throughout so far, and will try to keep iterating on this (albeit at a slower pace) on future days; I expect we can land it Soon™, and as we do it'll have much richer/more solid type behavior.

[sandstrom]

@lifeart This is so awesome! 🎉

@chriskrycho Are there any major blockers left in this PR?

[lifeart]

@sandstrom just use https://marketplace.visualstudio.com/items?itemName=lifeart.vscode-ember-unstable

[sandstrom]

@lifeart Awesome, just tried it and it works great. 🏅

Any plans to pull all that functionality into this repo? So that more people will discover it. (cc @chriskrycho @locks)

[sandstrom]

friendly ping @chriskrycho @locks