Type Ids for EventData and Game hashes

[sparr]

Brief Description

The hashes in Game for structures and construction sites have typed values. This PR types their keys to IDs for those value types.

This PR also types the objectId (actor) targetId for the various Event types, and adds a couple more lines of tests related to that.

Checklists

• Test passed
• Coding style (indentation, etc)
• Edits have been made to src/ files not index.d.ts
• Run npm run compile to update index.d.ts