Resolve "--enable-timers causes compilation error on master" (!1909) · Merge requests · SWIFT / SWIFTsim

I've implemented the missing timer and TIMER_TIC.

Once the errors mentioned in #888 (closed) were resolved another missing timer showed up:

runner_neutrino.c(92): error: identifier "timer_weight" is undefined
    if (timer) TIMER_TOC(timer_weight);

This one I implemented but also gave a more informative name.

--enable-timers could be added to the test configurations, it's not commonly used but would catch these.

Resolve "--enable-timers causes compilation error on master"