Merge ~morphis/snappy-hwe-snaps/+git/se-test-tools:f/add-dpkg into ~snappy-hwe-team/snappy-hwe-snaps/+git/se-test-tools:master

[Simon Fels]

Add dpkg to have a handy utility on core systems to compare versions

[Konrad Zapałowicz (kzapalowicz)]

ack

review: Approve (code)

[Alberto Milone (albertomilone)]

"dpkg --compare-versions" sounds like a sensible use case for having dpkg.

review: Approve

[System Enablement Bot (system-enablement-ci-bot)]

PASSED: Continuous integration, rev:6cfd085f242d7ae0f1fbf99cf5b7374b082e85e2
https://jenkins.canonical.com/system-enablement/job/snappy-hwe-snaps-snap-build/500/
Executed test runs:
    SUCCESS: https://jenkins.canonical.com/system-enablement/job/snappy-hwe-snaps-snap-build-worker/550
    SUCCESS: https://jenkins.canonical.com/system-enablement/job/snappy-hwe-snaps-snap-docs/551
    SUCCESS: https://jenkins.canonical.com/system-enablement/job/snappy-hwe-snaps-snap-test/549
    None: https://jenkins.canonical.com/system-enablement/job/snappy-hwe-snaps-snap-update-mp/517/console

Click here to trigger a rebuild:
https://jenkins.canonical.com/system-enablement/job/snappy-hwe-snaps-snap-build/500/rebuild

review: Approve (continuous-integration)

diff --git a/snapcraft.yaml b/snapcraft.yaml
index 2abad80..8a2e537 100644
--- a/snapcraft.yaml
+++ b/snapcraft.yaml
@@ -40,6 +40,8 @@ apps:
     command: usr/bin/mksquashfs
     plugs:
       - home
+  dpkg:
+    command: usr/bin/dpkg
 
 parts:
   packages:
@@ -50,3 +52,4 @@ parts:
       - ethtool
       - inotify-tools
       - squashfs-tools
+      - dpkg