* QgsField::ConfigurationFlags: use a negative form for the flags so that default flags is None
this will make this futureproof, so newly added flags won't cause trouble for compatibility with old projects
* follow up
* remove template class
* fix order of init
* follow up
* Revert "update test projects (open and save)"
This reverts commit c738609d9177ed398ba2a0ae0e1c16448accd5f6.
* DoNotExposeVia -> HideFrom