* disabling LTO when building the profiler on macos via the github workflow
* diagnosing where in the linking stage it's getting stuck
* fowrward declarations
* compilation time report
* trying clang build analyzer...
* reducing number of parallel workers
* limiting parallel workers on windows/linux as well
* re-enabling LTO on macos
* reverting forward declaration header include (emscripten is failing with them).
* reverting act changes
* removing comments
The documentation states that Tracy is disabled by default, but the
build system defaults were ON/true. Change CMake and Meson defaults to
OFF/false. Projects that need profiling enabled must now opt in
explicitly. Add explicit TRACY_ENABLE=ON / tracy_enable=true to CI
steps and the test project to preserve existing behavior.
PPQSort is supposedly quite fast: https://github.com/GabTux/PPQSort
More importantly, it does not depend on TBB fuckery, so there's no longer
a need to link with an external library that people may or may not have.
The NO_PARALLEL_STL option is out, as it was provided solely to deal with
TBB being not available. Sequential sorting is still used on emscripten.
