Add support for running the production client with the tracy profiler.

[modmuss50]

There is no default tracy-capture path, as there is no standard way of building/installing it.

[modmuss50]

On MacOS the changes in this PR work as expected, but on Linux where I want to be able to use this the most the game stalls when shutting down. I believe this is caused by: wolfpld/tracy#943 or at least something very similar, as I dont have symbols for Mojang's own natives its hard to tell. I also don't know if Mojang's own natives are built with TRACY_HAS_CALLSTACK=0 or not, I expect they are. The ones I created my self stall when launching here:

https://github.com/wolfpld/tracy/blob/5d542dc09f3d9378d005092a4ad446bd405f819a/public/client/TracyProfiler.cpp#L2047-L2049

so I can see why Mojang might have disabled it, leading to the linked issue. I dont want to add a feature to loom that requires custom tracy natives, so until this is fixed in tracy, released and Mojang updates I dont think we can do this.

[modmuss50]

I realised the workaround in in the tracy issue only needs to be applied to the capture server, so this can be fixed without modifying the game :)