* Initial commit for the co2signal sensor

* Clean code

* Run script gen_requirements_all.py

* remove unintended character

* Remove redundancy

* Remove unused imports

* Code style

* Code style fixes

* Code style

* Fix comments PR

Comments by @fabaff
* Remove redundant comments and variables
* Follow the latest home-assistant guidelines

* Bump CO2Signal version

* Round API result

* Improve default latitude/longitude handling

* Improve friendly name

* Improve config handling

* Make lines shorter

* Style

* Convert default to variable

None does not pass cv.string

* Message if not inclusive

* Shorten line

* Update requirements

* Update co2signal.py

Group imports;  remove empty lines; refactor use of location_type; remove logging messages; remove unused functions; add global variables

* Update co2signal.py

Import platform schema from sensor

* Small fix

* Update co2signal.py

Remove last mentions of location_type

* Review changes

Add attribution
Formatting

* Missing whitespace

* Update co2signal.py

Fix pylint

* Update co2signal.py

Change blank lines

* Update co2signal.py

Initialise _data