Use build ID in the unique DI identifier for workers

[cretz]

What was changed

• Added build ID option when adding a worker to the service collection
• Made sure to reference options by task queue + build ID instead of just task queue
• Throw an exception if users try to create the same worker identifier twice or if they change the options from what the identifier expects

Checklist

1. Closes [Bug] Cannot add multiple versions of a workflow using DI #212