Quick fix for now as it was frustrating to run qa_pcbnew and not be able to see the output
This moves the program-specific code (e.g. BIU files) into the program tests. Also, create title_block.cpp to break a dependency that pulled in eda_text.cpp when using the TITLE_BLOCK object.
This now allows code under /pcbnew to be tested. A first test of the GRAPHICS_IMPORT_MGR is added.