Add hwc to buildpack list in buildpack-dependency
Add hwc to buildpack list in buildpack-dependency

- Allows for relevant stories to be tagged with hwc buildpack

[#142052439]

Signed-off-by: Keaty Gross <ba27100af1ae477f2abedd28f15b1dd208b1f48a@pivotal.io>

cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci