For tests that need file import you can now choose between FiltersTest
or MacrosTest as base class.
FiltersTest imports through SfxObjectShell and does not have any ui
MacrosTest imports through Desktop::LoadComponentFromURL and initializes
the ui, therefore it needs to run headless
sot is below vcl, but is a filters test, we can split bootstrapfixture
into a vcl needing bit and and non-vcl bit and filters test api
can be standalone and combined with whichever bit in order to form
pre and post vcl filters test