Improve code to call checkConsistency through activities if hundred of objects because loading all objects can kill the perfomance

Also, Added test to Folder.recursiveCheckConsistency method
Simplify code because Base.fixConsistency calls Base.checkConsistency passing fixit equal True.
Improve and clean up scripts to improve performance to run each upgrader step

Clean up the code and improve performance to find all portal types with constraints
Install erp5_upgrader_test in the test setup
Clean up code and property sheet configuration