Makefile optimized for convenience
Introduced AT42QT1050 (touch sensor) driver.
Introduced PCAL6524 (GPIO extender) driver.
updated all file headers to 2019
add dw1000 driver
Makefile modified to get rid of absolute path
Adapted all file headers to state that this work is licensed under LGPLv3 (fromerly GPLv3).
Initial open-source release.