adding plugin manifest

Author: gracekarina

modules/swagger-parser-cli/pom.xml

@@ -26,6 +26,17 @@
             </resource>
         </resources>
         <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>io.swagger.v3.parser.SwaggerParser</mainClass>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>