[Feature Request]: Terminal Logger primary outputs should optionally use absolute paths

### Summary

In https://github.com/dotnet/sdk/issues/38552 @tmds requested that the primary outputs of built projects be able to emit the absolute path instead of relative paths. While we don't think this should be the _default_ behavior, some kind of knob here does make sense for their use case.

### Background and Motivation

We chose relative paths for the output (with clickable/right-click-able directory urls) for readability and usability based on customer feedback from the first Terminal Logger releases. However some user workflows benefit from copying the direct file.

### Proposed Feature

We should enable this either by emitting the absolute path visually, or by making the generated `file://`-scheme URIs (for terminals that support clickable links) emit absolute paths. This should be toggled via some option, it should not be the default.

### Alternative Designs

_No response_