Create a linter that reports when the MongoDB Go Driver is used in erroneous or error-prone ways. Specifically, cover cases that are detectable by static analysis, but don't cause compilation failures.

Proposed MongoDB Go Driver linter checks:

1. Check for improper usage of bson.E as a nested document instead of bson.D.
2. Check for improper passing of multiple options structs to some APIs (only Go Driver 2.x).
3. Check for un-closed sessions and transactions.
4. Check for operations inside WithSession or WithTransaction not using the SessionContext.

Definition of done:

• Create a Go linter that checks for some or all of the proposed problems above.

Open questions:

• What is the full list of checks?
• Should we create a new repository or release the linter as a submodule from the Go driver repository?