Proposed change

Adds a config flow for totalconnect so users can enter config via the user interface. Adds tests for it as well.

Bumps total-connect-client from 0.50 to 0.52.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example entry for configuration.yaml:

# Example configuration.yaml
# YAML configuration is no longer required..but if you want to
totalconnect:
  username: !secret totalconnect_username
  password: !secret totalconnect_password

Additional information

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• The code has been formatted using Black (black --fast homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io
  Update TotalConnect for config flow home-assistant.io#12171

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• [n/a] Untested files have been added to .coveragerc.

The integration reached or maintains the following Integration Quality Scale:

Working toward this...maybe next PR

• No score or internal
• 🥈 Silver
• 🥇 Gold
• 🏆 Platinum