Detect version of build tools used

For the detectors that we support, we should also record the version of the build tool that is available in the build environment.

This request came from an internal Microsoft team.

No files or tests are named. Start by locating the supported detector implementations and how they currently record build-environment details; determine which build tools each detector can identify. Done means supported detectors record the available build-tool version, with behavior covered by the relevant detector tests.

Written by the indexing model from the issue text.