Add kind and display_name to SymbolInformation

[soohoonc]

Started adding support for the kind and display_name field for SymbolInformation.

Test plan

Currently tested on couple of personal typescript repos, may need to update snapshot tests (not totally sure what the process here is like)

[soohoonc]

mapping from typescript types to symbolInformation is incomplete/may be inaccurate, will work on this a bit more.

[varungandhi-src]

Sorry, just saw this PR after #360

We should add a magic comment to display the kinds and symbol names in a specific file, and add new snapshotting logic for that. After that, you can update the snapshots. https://github.com/sourcegraph/scip-typescript/blob/main/Development.md

Existing snapshots should be unaffected, only the new file containing this magic comment should be affected.

Example of how we do this in scip-clang. https://sourcegraph.com/github.com/sourcegraph/scip-clang/-/blob/test/index/docs/docs.cc?L1-2