Trace how much time is spent in wasmtime vs hyperlight_guest vs hyperlight_host

[jsturtevant]

In the hl-wasm scenario we also want to understand the differences between time spent in Wasmtime vs in Hyperlight

we should either add trace exits to log when wasmtime execution starts/stops, or we should build a dummy version of the wasm guest that doesn't actually do the function call into wasmtime but just replays a log of parameter/return interactions; either would give us decently realistic view of how much is hyperlight parameter passing, with slightly different accuracy tradeoffs modes

[syntactically]

@jsturtevant whoops I just realised I reverted your title change by mistake since I didn't notice you had changed it. I do think that guest vs host is not a fine enough description of what we need for this issue however.

[dblnz]

Having merged #695 we now need to use the tracing support to add traces to hyperlight-wasm.