Adding necessary requirements to publish to maven (#199)

Author: John Tompkins

pom.xml

@@ -15,6 +15,23 @@
             <distribution>repo</distribution>
         </license>
     </licenses>
+
+    <developers>
+        <developer>
+            <id>amazonwebservices</id>
+            <organization>Amazon Web Services</organization>
+            <organizationUrl>https://aws.amazon.com</organizationUrl>
+            <roles>
+                <role>developer</role>
+            </roles>
+        </developer>
+    </developers>
+
+    <scm>
+        <connection>scm:git:https://github.com/aws-cloudformation/aws-cloudformation-rpdk-java-plugin.git</connection>
+        <developerConnection>scm:git:[email protected]:aws-cloudformation/aws-cloudformation-rpdk-java-plugin.git</developerConnection>
+        <url>https://github.com/aws-cloudformation/aws-cloudformation-rpdk-java-plugin</url>
+    </scm>
     <properties>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
@@ -374,4 +391,38 @@
             </plugin>
         </plugins>
     </build>
+
+    <profiles>
+        <profile>
+            <id>publishing</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-gpg-plugin</artifactId>
+                        <version>1.6</version>
+                        <executions>
+                            <execution>
+                                <id>sign-artifacts</id>
+                                <phase>verify</phase>
+                                <goals>
+                                    <goal>sign</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
+                    <plugin>
+                        <groupId>org.sonatype.plugins</groupId>
+                        <artifactId>nexus-staging-maven-plugin</artifactId>
+                        <version>1.6.8</version>
+                        <extensions>true</extensions>
+                        <configuration>
+                            <serverId>sonatype-nexus-staging</serverId>
+                            <nexusUrl>https://aws.oss.sonatype.org</nexusUrl>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
 </project>