FlightGear - Flight Simulator FGAddon

This is the 4th patch 'flightgear-fgaddon_path_fix4_Instruments.patch' attached
to the thread at https://sourceforge.net/p/flightgear/mailman/message/33744249/.

Due to the spinning out of the aircraft from FGData into the new FGAddon
repository, a number of aircraft now either do not work or have missing features
due to now incorrect file path assumptions. This fixes the incorrect references
to the Aircraft/Instruments/ path for the aircraft 747-200, 787, A-10, a4,
AN-225, B-52F, BAC-TSR2, Boeing314, Buccaneer, c310, c310u3a, CanberraBI8,
Concorde, dc3, ercoupe, fokker100, Lockheed1049, MiG-15, Noratlas, seahawk,
SeaVixen, SenecaII, SU-37, TU-114, victor, vulcanb2, and YF-23.