git: openjdk/skara: 59: Implement summary command

[duke]

Changeset: 9d206dd4
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2019-08-16 07:55:06 +0000
URL:       https://git.openjdk.java.net/skara/commit/9d206dd4

59: Implement summary command

Reviewed-by: ehelin

! bots/pr/src/main/java/org/openjdk/skara/bots/pr/CommandWorkItem.java
! bots/pr/src/main/java/org/openjdk/skara/bots/pr/PullRequestInstance.java
+ bots/pr/src/main/java/org/openjdk/skara/bots/pr/Summary.java
+ bots/pr/src/main/java/org/openjdk/skara/bots/pr/SummaryCommand.java
+ bots/pr/src/test/java/org/openjdk/skara/bots/pr/SummaryTests.java