Add Swagger Doc

[rsoika]

can be done with some maven plugin.

something like this:

<plugin>
				<groupId>com.github.kongchen</groupId>
				<artifactId>swagger-maven-plugin</artifactId>
				<version>3.1.1</version> <!-- TODO: move swagger version to top-level pom -->
				<configuration>
					<apiSources>
						<apiSource>
							<springmvc>false</springmvc>
							<schemes>http,https</schemes>
							<basePath>/</basePath>
							<locations>org.imixs.workflow.jaxrs</locations>
							<info>
								<title>ClusterMgr REST API</title>
								<version>v1</version>
								<description>test</description>
							</info>
							<swaggerDirectory>testx</swaggerDirectory>
						</apiSource>
					</apiSources>
				</configuration>
				<executions>
					<execution>
						<phase>prepare-package</phase>
						<goals>
							<goal>generate</goal>
						</goals>
					</execution>
				</executions>
			</plugin>