feat(opentelemetry): create otel instrumentation for typed-express-router

[starfy84]

Ticket: DX-1473

This PR implements a manual opentelemetry instrumentation for @api-ts/typed-express-router.

It modifies the library's wrapRouter and createRouter functions to create encode and decode spans.

For the telemetry to work, @opentelemetry/api needs to be installed

[starfy84]

express-wrapper modified due to onDecodeError return type being changed

[ericcrosson-bitgo]

We can simplify this thing we wrote several hours into our pair programming session last week with:

export const defaultOnDecodeError: OnDecodeErrorFn = (
  errs,
  _req, // Use _req to indicate it's not used if you prefer
  res
) => {
  // ... 
};