LPS-38576 Autodeployment of plugins in development --> please read description

Hi Brian, we have the feeling this is different to what you achieved with LPS-39277. Yours ensure that some plugins are always bundled, but the WAR must be provided in advanced (it won't be generated based on the latest sources).

This pull is for developers, so that every time they do ant deploy, not only the portal is deployed, but also some plugins are compiled and deployed (using the standard mechanism, they can be removed afterwards)... this is made to ensure the plugins are always compiling too.

cc @csierra @jorgeFerrer