[ CLI ] Add --packages support for kernel/jit-snapshot commands
[ CLI ] Add --packages support for kernel/jit-snapshot commands

Change-Id: Ifd947bd74f114bd081fd1b2c990cfc392f767278
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/236661
Reviewed-by: Jake Macdonald <28dccc213a1e50b0de348b9cb82c0229ef6b65f0@google.com>
Commit-Queue: Ben Konyi <67ffcaedcc3dc3d87dddb9627b72dd41756b31b1@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk