Support iOS packaging flags

Append the sampler argument only if targetting iOS. This removes the need to this check in the POM, which is useful for more complex projects.

In the same fashion, added the ``hideAneLibSymbols`` (AIR 3.4) flags and well as ``useLegacyAOT`` (AIR 4). Both would be useful for our regular usage of the plugin at Ludia.

@yelbota BTW Could we have a new version of the plugin released (1.0.9) ? Maybe it would nice to have an easier way to manage releases, and switch to Bintray as suggested here : https://github.com/yelbota/adt-maven-plugin/issues/18.