Preserve compatibility by including wx/time.h from wx/stopwatch.h but put all
the time-related functions in a more logical place.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69838 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fixed wxGetLocalTimeMillis() to really return the local time and provide
wxGetUTCTimeMillis() doing what this function used to do before. Closes#13610.
Also add wxGetUTCTimeUSec() for even higher resolution time stamps as it is
basically the same as wxGetUTCTimeMillis() anyhow, at least for MSW and
non-ancient Unix systems providing gettimeofday().
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69837 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Also simplify/streamline wxStopWatch implementation and replace confusingly
named m_pause with more clear m_elapsedBeforePause.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69835 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
QueryPerformanceCounter() provides higher resolution and precision for
measuring time under MSW, even though it suffers from some problems in older
Windows versions.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69834 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Use "wxWindows licence" and not "wxWidgets licence" (the latter doesn't
exist) and consistently spell "licence" using British spelling.
See #12165.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64940 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
