remove the fixturePartsMatcher and replace with an api
rename the defaultsfixture to alice
use a callsPartsFixture as a doctrine fixture that executes all collected calls from the PartsManager
load services tagged with projectstack.fixture as fixtures for the manager
add a simple interface that allows to setObjectManager for (parts)-fixtures
add an executeOnce function to the base class that receives fixtureParts an executes them if not already fixtures are executed for the testsuite