* [`changed`] Replace SHTC3's auto-sleeping with manual sleeping for better
control of the sensor and easier-to-read code.
- Adds the functions `shtc1_sleep()` and `shtc1_wake_up()`
Despite the name, the functions only work on the SHTC3.
- Remove `shtc1_disable_sleeping()`.
* [`removed`] Remove the `AUTHORS` file from the driver and the
`embedded-common` submodule, as it adds more noise than benefit.
The contributors can be found in the git log.
* [`fixed`] Copy correct `CHANGELOG.md` and `LICENSE` files to target
locations when running the `release` target of the driver's root
Makefile.
* [`fixed`] Fix uVision compilation warnings (#1295-D: Deprecated
declaration of shtc1_sleep - give arg types)
* [`added`] Add convenience function convert relative to absolute humidity
* [`added`] Add convenience functions convert between Celsius and Fahrenheit
