Aaron Allen authored May 24, 2021 and Francesco Gazzetta committed Jun 05, 2021

Changes the behavior of the following commands under the `--dry-run` and
`--only-download` flags
- `v2-configure` and `v2-freeze` do not write their respective files
- `v2-exec` and `v2-run` do not run the target executable

Adds package tests for the configure and freeze commands.