Cast own address to Individial address when specified within xknx.yaml

[Julius2342]

Description

Specifying own_address within xknx.yaml broke during a recent refactoring. (Looks like I'm the only person using this :-) ).

This led to a TypeError when comparing Telegrams.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• I have performed a self-review of my own code
• The documentation has been adjusted accordingly
• The changes generate no new warnings
• Tests have been added that prove the fix is effective or that the feature works
• The changes are documented in the changelog
• The Homeassistant plugin has been adjusted in case of new config options

[coveralls]

Coverage increased (+0.0009%) to 94.773% when pulling 8ff9853 on Julius2342:fix-xknx-yaml-individual-address into 30720c7 on XKNX:master.

[farmio]

Oops 😬
Thank you!