4.2.3

Changelog from version 4.2.2 to 4.2.3:

db64286 new version 4.2.3
b5d254a Setting C++ standard to 17
f1f8a46 Applying new make_share
68029be Expanding ptr macros of types
8ae255e Removing times argument from monitor demo
6f697c4 Revert "Improving types macros by adding make functions (make_share, make_unique)"
6527072 Improving types macros by adding make functions (make_share, make_unique)
03232df Fixing maintainer name in viewer package
4bcaf5a Update license badge from MIT to GPL-3.0