Add thermocouple with AD8495 support

Marlin/Conditionals_post.h

Marlin/Configuration.h

Marlin/Configuration_adv.h

.../example_configurations/AlephObjects/TAZ4/Configuration.h

...mple_configurations/AlephObjects/TAZ4/Configuration_adv.h

.../example_configurations/AliExpress/CL-260/Configuration.h

Marlin/example_configurations/Anet/A6/Configuration.h

Marlin/example_configurations/Anet/A6/Configuration_adv.h

Marlin/example_configurations/Anet/A8/Configuration.h

Marlin/example_configurations/Anet/A8/Configuration_adv.h

...xample_configurations/BIBO/TouchX/Cyclops/Configuration.h

...le_configurations/BIBO/TouchX/Cyclops/Configuration_adv.h

...xample_configurations/BIBO/TouchX/default/Configuration.h

...le_configurations/BIBO/TouchX/default/Configuration_adv.h

Marlin/example_configurations/BQ/Hephestos/Configuration.h

...n/example_configurations/BQ/Hephestos/Configuration_adv.h

Marlin/example_configurations/BQ/Hephestos_2/Configuration.h

...example_configurations/BQ/Hephestos_2/Configuration_adv.h

Marlin/example_configurations/BQ/WITBOX/Configuration.h

Marlin/example_configurations/BQ/WITBOX/Configuration_adv.h