Drop Python 3.7 support

So long and thanks for all the PEPs

Limit results

Adds support for new limit parameter.

Custom API domain and Python support updates

This version adds official support for a custom base domain in the API.

It also DROPS official support for Python 3.6 and ADDS official support for Python 3.11.

Fix For Batched Keyed Address Geocoding

• Fixes batched keyed address geocoding

Address dictionary support

• Addresses can be sent through as lists or dictionaries
• Drops Python 2 support