boost::timer is deprecated

[donno]

This applies to boost::timer (the class not the namespace) used at:

libpointmatcher/pointmatcher/Timer.h

Line 80 in 3eb4483

typedef boost::timer timer;

The replacement is boost::timer::cpu_timer which is in `boost/timer/cpu_timer.hpp.
The <boost/timer.hpp> header has been deprecated, since January 2019.
The class has been deprecated since around October 2011 when v2 was merged in with the replacement.

See Boost Thread Library documentation for details

Having said that, perhaps the better option would be to replace Boost timer class with std::chrono::steady_clock when not using the POSIX timers.

[boxanm]

Hi @donno! I opened a PR replacing boost::timer with std::chrono::steady_clock as suggested: #598
It should be part of the next LPM release.