updated all file headers to 2019
Defined all apalControGpio_t driver members to be const since they must be changed.
Merge branch 'master' of http://openresearch.cit-ec.de/git/amiro-os.amiro-lld
Doxygen file documentation.
- All drivers which held a apalControlGpio_t before, now only hold a pointer to an according object.- Introduced a configuration macro to define the width of the apalTime_t type.- Several minor modifications to periphALtypes.h.
Adapted all file headers to state that this work is licensed under LGPLv3 (fromerly GPLv3).
Initial open-source release.