Fixes https://gitlab.com/kicad/code/kicad/issues/7153
Fixes https://gitlab.com/kicad/code/kicad/issues/7118
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.