Support Build zephyr application using west

[martanav]

label:enhancement

Problem description
Plugin supports build with ninja/make as options in project wizard.

eclipse-plugin/plugins/org.zephyrproject.ide.eclipse.core/src/org/zephyrproject/ide/eclipse/core/build/ZephyrApplicationBuildConfiguration.java

Line 141 in 17572aa

* Build the application by invoking make or ninja.

However, from command line, it is possible to build with west.
Also, there is an option to launch debugserver with west.

Solution
Adding west as build option in the project creation wizard.