FEAT(server): Add support for the tracy profiler

Tracy (https://github.com/wolfpld/tracy) is a profiler that is aimed at
having a very low impact on the runtime performance and is thus suitable
to be used in production systems to figure out what is going on and how
the code is performing.

For the time being, this commit instruments only the server code.
Furthermore, the instrumentation is performed in a rather minimalistic
way that should suffice to start profiling audio and control message
processing but is definitely far from being complete. Further
instrumentation will be added on-demand.

1 files changed, 0 insertions, 0 deletions

diff --git a/3rdparty/tracy b/3rdparty/tracy
new file mode 160000
+Subproject 29dc2fadf9a747296739f4fb150b3fe1e848370