No Datatype hightlighting

[wamry]

Datatypes are not highlighted correctly, they're just left for the default white text, which is very confusing, and also the expected object names are not highlighted to red as shown in the image

[DanielRosenwasser]

We'd need to start using the semantic classifier over TSServer. sublimehq/sublime_text#817 describes what we might need to do to accomplish this. We'd be open to accepting PRs here though.