- moved PAL-symbols to new pld_pal.lib (these will need overhaul in a separate PR)
- renamed PCI&ISA-bus "connectors" in a common style, updated descriptions
- unified connector-naming style CONN->Conn, BUS->Bus, ...
- moved remaining IC (PCI9030-PQFP176) to interface.lib + added FPFilters (symbol also needs overhaul in a separated PR)