Split out utils package for helper classes

In upcoming commits, we will split out a class of GetCrd that handles
the Depends-On part, and a class that handles the Needed-By part. This
would crowd the main namespace. So we prepare a `utils` package for
CommitMessageFetcher and these upcoming helper classes.

Change-Id: I44d1cc9fef55573e8563a7e28eb76d4cf81e8bf3

src/main/java/com/googlesource/gerrit/plugins/zuul/GetCrd.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/zuul/GetCrd.java b/src/main/java/com/googlesource/gerrit/plugins/zuul/GetCrd.java
index 6e8b1a7..8194a2e 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/zuul/GetCrd.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/zuul/GetCrd.java
@@ -29,6 +29,8 @@
 import com.google.gerrit.server.restapi.change.QueryChanges;
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
+import com.googlesource.gerrit.plugins.zuul.util.CommitMessageFetcher;
+
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;

src/main/java/com/googlesource/gerrit/plugins/zuul/util/CommitMessageFetcher.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/zuul/CommitMessageFetcher.java b/src/main/java/com/googlesource/gerrit/plugins/zuul/util/CommitMessageFetcher.java
similarity index 96%
rename from src/main/java/com/googlesource/gerrit/plugins/zuul/CommitMessageFetcher.java
rename to src/main/java/com/googlesource/gerrit/plugins/zuul/util/CommitMessageFetcher.java
index 961cad8..8586be6 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/zuul/CommitMessageFetcher.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/zuul/util/CommitMessageFetcher.java
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.googlesource.gerrit.plugins.zuul;
+package com.googlesource.gerrit.plugins.zuul.util;
 
 import com.google.gerrit.entities.Project;
 import com.google.gerrit.server.git.GitRepositoryManager;

src/test/java/com/googlesource/gerrit/plugins/zuul/GetCrdTest.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/zuul/GetCrdTest.java b/src/test/java/com/googlesource/gerrit/plugins/zuul/GetCrdTest.java
index 019f5c3..3fb6b9f 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/zuul/GetCrdTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/zuul/GetCrdTest.java
@@ -29,6 +29,8 @@
 import com.google.gerrit.server.change.RevisionResource;
 import com.google.gerrit.server.restapi.change.ChangesCollection;
 import com.google.gerrit.server.restapi.change.QueryChanges;
+import com.googlesource.gerrit.plugins.zuul.util.CommitMessageFetcher;
+
 import java.sql.Timestamp;
 import java.util.ArrayList;
 import java.util.List;

src/test/java/com/googlesource/gerrit/plugins/zuul/util/CommitMessageFetcherTest.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/zuul/CommitMessageFetcherTest.java b/src/test/java/com/googlesource/gerrit/plugins/zuul/util/CommitMessageFetcherTest.java
similarity index 98%
rename from src/test/java/com/googlesource/gerrit/plugins/zuul/CommitMessageFetcherTest.java
rename to src/test/java/com/googlesource/gerrit/plugins/zuul/util/CommitMessageFetcherTest.java
index edda09e..db228f3 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/zuul/CommitMessageFetcherTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/zuul/util/CommitMessageFetcherTest.java
@@ -11,7 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-package com.googlesource.gerrit.plugins.zuul;
+package com.googlesource.gerrit.plugins.zuul.util;
 
 import static com.google.common.truth.Truth.assertThat;
 import static com.google.gerrit.testing.GerritJUnit.assertThrows;