Cover how to use Maven to build and package from CLI?

[yeekangc]

The current version of the guide doesn't cover how to use Maven from CLI to build and package an application.

Should consider including these beyond the use of liberty:run and liberty:dev. Or, provide pointers to Getting Started guide where appropriate.

[NK-debug]

mvn liberty:help

[INFO] Scanning for projects...
[INFO]
[INFO] ----------------< io.openliberty.guides:ServletSample >-----------------
[INFO] Building ServletSample 1.0-SNAPSHOT
[INFO] --------------------------------[ war ]---------------------------------
[INFO]
[INFO] --- liberty-maven-plugin:3.5.1:help (default-cli) @ ServletSample ---
[INFO] liberty-maven-plugin 3.5.1
  Liberty Maven Plugin : Install, Start/Stop, Package, Create Server,
  Deploy/Undeploy applications

This plugin has 24 goals:

liberty:clean
  Clean the logs, workarea, dropins and apps directories.

liberty:compile-jsp
  Compile the JSPs in the src/main/webapp folder.

liberty:configure-arquillian

liberty:create
  Create a liberty server

liberty:debug
  Start a liberty server in debug mode

liberty:deploy
  Copy applications to the specified directory of the Liberty server. The
  ResolutionScope.COMPILE_PLUS_RUNTIME includes compile + system + provided +
  runtime dependencies. The copyDependencies functionality will include
  dependencies with all those scopes, and transitive dependencies with scope
  compile + system + runtime. Provided scope transitive dependencies are not
  included by default (built-in maven behavior).

liberty:dev
  Start a liberty server in dev mode import to set ResolutionScope for TEST as
  it helps build full transitive dependency classpath

liberty:devc
  Start dev mode for containers

liberty:display-url
  Display an application URL in the default browser.

liberty:dump
  Dump diagnostic information from the server into an archive.

liberty:help
  Display help information on liberty-maven-plugin.
  Call mvn liberty:help -Ddetail=true -Dgoal=<goal-name> to display parameter
  details.

liberty:install-feature
  This mojo installs a feature packaged as a Subsystem Archive (esa) to the
  runtime.

liberty:install-server
  Install a liberty server

liberty:java-dump
  Dump diagnostic information from the server JVM.

liberty:package
  Package a liberty server

liberty:prepare-feature
  This mojo generates JSON files so user features can be installed from a
  specified BOM

liberty:run
  Start a liberty server

liberty:start
  Start a liberty server

liberty:status
  Check a liberty server status

liberty:stop
  Stop a liberty server

liberty:test-start
  Start a liberty server if tests are not skipped

liberty:test-stop
  Quickly bypass stopping server if server isn't started

liberty:undeploy
  Undeploy application from liberty server. If no parameters have been defined
  the mojo will undeploy all applications from the server.

liberty:uninstall-feature
  This mojo uninstalls a feature packaged as a Subsystem Archive (esa) from the
  runtime.