Revisit tracing strategy

[ludfjig]

The current state of tracing in hyperlight is a bit all over the place. We should have:

• Less fine grained tracing: Right now many irrelevant small helper functions are being traced. We should consider only covering our APIs
• Include guest calls in tracing spans
• Revisit which function parameters should and shouldn't be traced.
• Revisit tracing log levels

[simongdavies]

I suggest that we only place trace attributes on pub functions, that should reduce the overhead/noise

[danbugs]

Related to #318