Override logging functions to log directly to Hypermode

[mattjohnsonpint]

Rather than writing to WASI stdout and stderr, we need to call a host function on the runtime (log) for console.log and related functions. This also includes abort (used when throwing exceptions) and trace (which we don't use much, but is a built-in).

The implementation also simplifies the asconfig.json file used by the user's project, moving most of it to plugin.asconfig.json in the library. A corresponding update will be required on the template project.

Depends on hypermodeinc/modus#224

Completes HYP-1385