PCB: WorldFIP diff pair routing
Improve routing of the differential WorldFIP signal from the front
connector to the FielDrive.
Despite the fact that the WorldFIP signal is slow and on V1 (where
routing is far from symmetrical) we have not faced issues in the testing
environment, better routing would result in a more robust design; the
removal of RL2 (see related issue) would ease the rerouting.
Place C3 next to TR1; place protection diodes D11, D12, D14 next to TR1;
place D1, D2 next to IC14.