Implement async http client library to speed up object sync

[synackray]

Is your feature request related to a problem? Please describe.
Currently the NetBox object sync operations of this script depend on synchronous http request operations. This increases the time to complete with the quantity of objects being synced.

Describe the solution you'd like
Implement an async http client library such as aiohttp.

Additional context
This will require a change to the script dependencies and will therefore need to be promoted to master in a major release.