Add Sonatype deploy plugin to simplify releases

Author: cowtowncoder

pom.xml

@@ -122,6 +122,21 @@ com.fasterxml.jackson.core.*;version=${project.version}
         <groupId>org.moditect</groupId>
         <artifactId>moditect-maven-plugin</artifactId>
       </plugin>
+
+      <!-- 08-Nov-2019, tatu: Copied from
+           https://github.com/stephenc/git-timestamp-maven-plugin/blob/master/pom.xml#L327-L337
+         -->
+      <plugin>
+        <groupId>org.sonatype.plugins</groupId>
+        <artifactId>nexus-staging-maven-plugin</artifactId>
+        <version>1.6.6</version>
+        <extensions>true</extensions>
+        <configuration>
+          <serverId>sonatype-nexus-staging</serverId>
+          <nexusUrl>https://oss.sonatype.org/</nexusUrl>
+          <stagingProfileId>b34f19b9cc6224</stagingProfileId>
+        </configuration>
+      </plugin>
     </plugins>
   </build>