Merged unified and raw libraries

Merge branch 'master' of https://github.com/adafruit/DHT-sensor-library

Bump library to 1.2.2 version.

Merge branch 'jmdana-master'

Merge branch 'matthijskooijman-fixes'

Fix merge conflict with interrupt disable lock.

Merge branch 'MyIgel-master'

Automatic library.properties generation.