Changes

• Added document symbols feature. This feature is useful to navigate large craft files with numerous parts.

• Improved performances by sharing the parsed files between language server endpoints and tweaking the parsing itself. Performances were not that bad to begin with, but it was too easy of an opportunity to pass by, and it simplifies the code base as well. On my system, a documentation hover lookup went from an avg of 20ms down to 10ms.
• Dependencies upgrade and removed a bit of code we no longer need due to the improved latest schemas