Add sysprof integration into IdeLspService
We often need to profile/debug language servers which are spawned from within Builder. Getting access to that information is a giant PITA because you have to have a breakpoint in builder and hijack how it spawns w/ gdbserver or sysprof-cli, etc.
Instead of that, it would be nice if we at least had a good profiling story that can create a new control-fd using libsysprof and pass that into the language-server.
The output could then be muxed to Builder's own output so running builder w/ tracing/profiling results in tracing language servers too.