LPS-50055 New arquillian extension that initialize the Liferay spring and osgi context for the arquillian tests.

We are registering an observer (InitializeLiferayTestEnvironment) on BeforeClass event. This observer performs the same operations as the CustomizableSpringContextJunitTestRunner.
LPS-50055 Make the springs config locations extensible.

If you register new services than implements the SpringDescriptor interface, you can add new spring configurations to the tests spring context.
LPS-50055 Add the LiferayContextCreatedEvent

This event will be launched after the Spring and OSGI contexts of the tests have been created.
LPS-50055 Compile new extension
LPS-50055 Publish the new extension in a local maven repo
LPS-50055 Use Ivy to resolve arquillian extensions dependencies
LPS-50055 SF and reorder classes
LPS-50055 Simplify build file
LPS-50055 rename to match arquillian-bundle-manager
LPS-50055 setup-eclipse
LPS-50055 SF
LPS-50055 osgi/test isn't read, so let's mimic arquillian-bundle-manager and deploy it to osgi/modules
LPS-50055 SF
LPS-50055 SF
LPS-50055 Can I simplify it like this?
LPS-50055 Missed one
LPS-50055 This is what we're really doing
LPS-50055 this is noisy
update ivy
update ivy