Introduces `[INFO]`, `[WARN]`, and `[ERROR]` prefixes to error messages to make them easier to read and understand when debugging. The hope is that we remain consistent with this formatting across the codebase.

Ticket: DX-660

This adds a stacktrace as a string alongside the message passed to the E.left.

Ticket: DX-660

Ticket: DX-660

Adds a utility function to strip stacktraces off of errors since they
are machine/platform dependent and cannot hard-code them into tests.

Ticket: DX-660

Ticket: DX-660