Add option to manually specify device detection method

[heytensai]

Description:

Mikrotik module automatically detects whether to use wireless, capsman, or dhcp for device detection. If a Mikrotik router has wireless but the use prefers to use dhcp, this new option allows the user to force a specific method.

Pull request in home-assistant.io with documentation (if applicable): home-assistant/home-assistant.io#7145

Example entry for configuration.yaml (if applicable):

device_tracker:
  - platform: mikrotik
    host: IP_ADDRESS
    username: ADMIN_USERNAME
    password: ADMIN_PASSWORD
    method: ip

Checklist:

• The code change is tested and works locally.
• Local tests pass with tox. Your PR cannot be merged unless tests pass

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

• Documentation added/updated in home-assistant.io

[homeassistant]

Hi @heytensai,

It seems you haven't yet signed a CLA. Please do so here.

Once you do that we will be able to review and accept this pull request.

Thanks!

[houndci-bot]

Some files could not be reviewed due to errors:

Traceback (most recent call last):

Traceback (most recent call last):
  File "/home/linters/.local/bin/flake8", line 7, in 
    from flake8.main.cli import main
ModuleNotFoundError: No module named 'flake8'

[fabaff]

Looks good to me 🐦